Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * intelfb | |
3 | * | |
4 | * Linux framebuffer driver for Intel(R) 865G integrated graphics chips. | |
5 | * | |
96de0e25 | 6 | * Copyright © 2002, 2003 David Dawes <dawes@xfree86.org> |
1da177e4 LT |
7 | * 2004 Sylvain Meyer |
8 | * | |
9 | * This driver consists of two parts. The first part (intelfbdrv.c) provides | |
10 | * the basic fbdev interfaces, is derived in part from the radeonfb and | |
11 | * vesafb drivers, and is covered by the GPL. The second part (intelfbhw.c) | |
12 | * provides the code to program the hardware. Most of it is derived from | |
13 | * the i810/i830 XFree86 driver. The HW-specific code is covered here | |
14 | * under a dual license (GPL and MIT/XFree86 license). | |
15 | * | |
16 | * Author: David Dawes | |
17 | * | |
18 | */ | |
19 | ||
20 | /* $DHD: intelfb/intelfbhw.c,v 1.9 2003/06/27 15:06:25 dawes Exp $ */ | |
21 | ||
1da177e4 LT |
22 | #include <linux/module.h> |
23 | #include <linux/kernel.h> | |
24 | #include <linux/errno.h> | |
25 | #include <linux/string.h> | |
26 | #include <linux/mm.h> | |
1da177e4 LT |
27 | #include <linux/slab.h> |
28 | #include <linux/delay.h> | |
29 | #include <linux/fb.h> | |
1da177e4 LT |
30 | #include <linux/ioport.h> |
31 | #include <linux/init.h> | |
32 | #include <linux/pci.h> | |
33 | #include <linux/vmalloc.h> | |
1da177e4 | 34 | #include <linux/pagemap.h> |
7649757b | 35 | #include <linux/interrupt.h> |
1da177e4 LT |
36 | |
37 | #include <asm/io.h> | |
38 | ||
39 | #include "intelfb.h" | |
40 | #include "intelfbhw.h" | |
41 | ||
7258b11d | 42 | struct pll_min_max { |
51d79747 DA |
43 | int min_m, max_m, min_m1, max_m1; |
44 | int min_m2, max_m2, min_n, max_n; | |
45 | int min_p, max_p, min_p1, max_p1; | |
46 | int min_vco, max_vco, p_transition_clk, ref_clk; | |
16109b3f | 47 | int p_inc_lo, p_inc_hi; |
7258b11d DA |
48 | }; |
49 | ||
50 | #define PLLS_I8xx 0 | |
51 | #define PLLS_I9xx 1 | |
52 | #define PLLS_MAX 2 | |
53 | ||
46f60b8e | 54 | static struct pll_min_max plls[PLLS_MAX] = { |
51d79747 DA |
55 | { 108, 140, 18, 26, |
56 | 6, 16, 3, 16, | |
57 | 4, 128, 0, 31, | |
58 | 930000, 1400000, 165000, 48000, | |
689c9568 | 59 | 4, 2 }, /* I8xx */ |
51d79747 DA |
60 | |
61 | { 75, 120, 10, 20, | |
62 | 5, 9, 4, 7, | |
63 | 5, 80, 1, 8, | |
64 | 1400000, 2800000, 200000, 96000, | |
689c9568 | 65 | 10, 5 } /* I9xx */ |
7258b11d DA |
66 | }; |
67 | ||
689c9568 | 68 | int intelfbhw_get_chipset(struct pci_dev *pdev, struct intelfb_info *dinfo) |
1da177e4 LT |
69 | { |
70 | u32 tmp; | |
d024960c | 71 | if (!pdev || !dinfo) |
1da177e4 LT |
72 | return 1; |
73 | ||
74 | switch (pdev->device) { | |
75 | case PCI_DEVICE_ID_INTEL_830M: | |
d024960c DA |
76 | dinfo->name = "Intel(R) 830M"; |
77 | dinfo->chipset = INTEL_830M; | |
78 | dinfo->mobile = 1; | |
79 | dinfo->pll_index = PLLS_I8xx; | |
1da177e4 LT |
80 | return 0; |
81 | case PCI_DEVICE_ID_INTEL_845G: | |
d024960c DA |
82 | dinfo->name = "Intel(R) 845G"; |
83 | dinfo->chipset = INTEL_845G; | |
84 | dinfo->mobile = 0; | |
85 | dinfo->pll_index = PLLS_I8xx; | |
1da177e4 LT |
86 | return 0; |
87 | case PCI_DEVICE_ID_INTEL_85XGM: | |
88 | tmp = 0; | |
d024960c DA |
89 | dinfo->mobile = 1; |
90 | dinfo->pll_index = PLLS_I8xx; | |
1da177e4 LT |
91 | pci_read_config_dword(pdev, INTEL_85X_CAPID, &tmp); |
92 | switch ((tmp >> INTEL_85X_VARIANT_SHIFT) & | |
93 | INTEL_85X_VARIANT_MASK) { | |
94 | case INTEL_VAR_855GME: | |
d024960c DA |
95 | dinfo->name = "Intel(R) 855GME"; |
96 | dinfo->chipset = INTEL_855GME; | |
1da177e4 LT |
97 | return 0; |
98 | case INTEL_VAR_855GM: | |
d024960c DA |
99 | dinfo->name = "Intel(R) 855GM"; |
100 | dinfo->chipset = INTEL_855GM; | |
1da177e4 LT |
101 | return 0; |
102 | case INTEL_VAR_852GME: | |
d024960c DA |
103 | dinfo->name = "Intel(R) 852GME"; |
104 | dinfo->chipset = INTEL_852GME; | |
1da177e4 LT |
105 | return 0; |
106 | case INTEL_VAR_852GM: | |
d024960c DA |
107 | dinfo->name = "Intel(R) 852GM"; |
108 | dinfo->chipset = INTEL_852GM; | |
1da177e4 LT |
109 | return 0; |
110 | default: | |
d024960c DA |
111 | dinfo->name = "Intel(R) 852GM/855GM"; |
112 | dinfo->chipset = INTEL_85XGM; | |
1da177e4 LT |
113 | return 0; |
114 | } | |
115 | break; | |
116 | case PCI_DEVICE_ID_INTEL_865G: | |
d024960c DA |
117 | dinfo->name = "Intel(R) 865G"; |
118 | dinfo->chipset = INTEL_865G; | |
119 | dinfo->mobile = 0; | |
120 | dinfo->pll_index = PLLS_I8xx; | |
1da177e4 LT |
121 | return 0; |
122 | case PCI_DEVICE_ID_INTEL_915G: | |
d024960c DA |
123 | dinfo->name = "Intel(R) 915G"; |
124 | dinfo->chipset = INTEL_915G; | |
125 | dinfo->mobile = 0; | |
126 | dinfo->pll_index = PLLS_I9xx; | |
1da177e4 | 127 | return 0; |
3a59026b | 128 | case PCI_DEVICE_ID_INTEL_915GM: |
d024960c DA |
129 | dinfo->name = "Intel(R) 915GM"; |
130 | dinfo->chipset = INTEL_915GM; | |
131 | dinfo->mobile = 1; | |
132 | dinfo->pll_index = PLLS_I9xx; | |
3a59026b | 133 | return 0; |
9639d5ec DA |
134 | case PCI_DEVICE_ID_INTEL_945G: |
135 | dinfo->name = "Intel(R) 945G"; | |
136 | dinfo->chipset = INTEL_945G; | |
137 | dinfo->mobile = 0; | |
138 | dinfo->pll_index = PLLS_I9xx; | |
139 | return 0; | |
9a90603f DA |
140 | case PCI_DEVICE_ID_INTEL_945GM: |
141 | dinfo->name = "Intel(R) 945GM"; | |
142 | dinfo->chipset = INTEL_945GM; | |
143 | dinfo->mobile = 1; | |
144 | dinfo->pll_index = PLLS_I9xx; | |
145 | return 0; | |
1da177e4 LT |
146 | default: |
147 | return 1; | |
148 | } | |
149 | } | |
150 | ||
689c9568 KH |
151 | int intelfbhw_get_memory(struct pci_dev *pdev, int *aperture_size, |
152 | int *stolen_size) | |
1da177e4 LT |
153 | { |
154 | struct pci_dev *bridge_dev; | |
155 | u16 tmp; | |
1aecb393 | 156 | int stolen_overhead; |
1da177e4 LT |
157 | |
158 | if (!pdev || !aperture_size || !stolen_size) | |
159 | return 1; | |
160 | ||
161 | /* Find the bridge device. It is always 0:0.0 */ | |
a77b8950 | 162 | if (!(bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0)))) { |
1da177e4 LT |
163 | ERR_MSG("cannot find bridge device\n"); |
164 | return 1; | |
165 | } | |
166 | ||
167 | /* Get the fb aperture size and "stolen" memory amount. */ | |
168 | tmp = 0; | |
169 | pci_read_config_word(bridge_dev, INTEL_GMCH_CTRL, &tmp); | |
a77b8950 AC |
170 | pci_dev_put(bridge_dev); |
171 | ||
1da177e4 | 172 | switch (pdev->device) { |
1aecb393 EH |
173 | case PCI_DEVICE_ID_INTEL_915G: |
174 | case PCI_DEVICE_ID_INTEL_915GM: | |
175 | case PCI_DEVICE_ID_INTEL_945G: | |
176 | case PCI_DEVICE_ID_INTEL_945GM: | |
177 | /* 915 and 945 chipsets support a 256MB aperture. | |
178 | Aperture size is determined by inspected the | |
179 | base address of the aperture. */ | |
180 | if (pci_resource_start(pdev, 2) & 0x08000000) | |
181 | *aperture_size = MB(128); | |
182 | else | |
183 | *aperture_size = MB(256); | |
184 | break; | |
185 | default: | |
1da177e4 LT |
186 | if ((tmp & INTEL_GMCH_MEM_MASK) == INTEL_GMCH_MEM_64M) |
187 | *aperture_size = MB(64); | |
188 | else | |
189 | *aperture_size = MB(128); | |
1aecb393 EH |
190 | break; |
191 | } | |
192 | ||
193 | /* Stolen memory size is reduced by the GTT and the popup. | |
194 | GTT is 1K per MB of aperture size, and popup is 4K. */ | |
195 | stolen_overhead = (*aperture_size / MB(1)) + 4; | |
196 | switch(pdev->device) { | |
197 | case PCI_DEVICE_ID_INTEL_830M: | |
198 | case PCI_DEVICE_ID_INTEL_845G: | |
1da177e4 LT |
199 | switch (tmp & INTEL_830_GMCH_GMS_MASK) { |
200 | case INTEL_830_GMCH_GMS_STOLEN_512: | |
1aecb393 | 201 | *stolen_size = KB(512) - KB(stolen_overhead); |
1da177e4 LT |
202 | return 0; |
203 | case INTEL_830_GMCH_GMS_STOLEN_1024: | |
1aecb393 | 204 | *stolen_size = MB(1) - KB(stolen_overhead); |
1da177e4 LT |
205 | return 0; |
206 | case INTEL_830_GMCH_GMS_STOLEN_8192: | |
1aecb393 | 207 | *stolen_size = MB(8) - KB(stolen_overhead); |
1da177e4 LT |
208 | return 0; |
209 | case INTEL_830_GMCH_GMS_LOCAL: | |
210 | ERR_MSG("only local memory found\n"); | |
211 | return 1; | |
212 | case INTEL_830_GMCH_GMS_DISABLED: | |
213 | ERR_MSG("video memory is disabled\n"); | |
214 | return 1; | |
215 | default: | |
216 | ERR_MSG("unexpected GMCH_GMS value: 0x%02x\n", | |
217 | tmp & INTEL_830_GMCH_GMS_MASK); | |
218 | return 1; | |
219 | } | |
220 | break; | |
221 | default: | |
1da177e4 LT |
222 | switch (tmp & INTEL_855_GMCH_GMS_MASK) { |
223 | case INTEL_855_GMCH_GMS_STOLEN_1M: | |
1aecb393 | 224 | *stolen_size = MB(1) - KB(stolen_overhead); |
1da177e4 LT |
225 | return 0; |
226 | case INTEL_855_GMCH_GMS_STOLEN_4M: | |
1aecb393 | 227 | *stolen_size = MB(4) - KB(stolen_overhead); |
1da177e4 LT |
228 | return 0; |
229 | case INTEL_855_GMCH_GMS_STOLEN_8M: | |
1aecb393 | 230 | *stolen_size = MB(8) - KB(stolen_overhead); |
1da177e4 LT |
231 | return 0; |
232 | case INTEL_855_GMCH_GMS_STOLEN_16M: | |
1aecb393 | 233 | *stolen_size = MB(16) - KB(stolen_overhead); |
1da177e4 LT |
234 | return 0; |
235 | case INTEL_855_GMCH_GMS_STOLEN_32M: | |
1aecb393 | 236 | *stolen_size = MB(32) - KB(stolen_overhead); |
1da177e4 LT |
237 | return 0; |
238 | case INTEL_915G_GMCH_GMS_STOLEN_48M: | |
1aecb393 | 239 | *stolen_size = MB(48) - KB(stolen_overhead); |
1da177e4 LT |
240 | return 0; |
241 | case INTEL_915G_GMCH_GMS_STOLEN_64M: | |
1aecb393 | 242 | *stolen_size = MB(64) - KB(stolen_overhead); |
1da177e4 LT |
243 | return 0; |
244 | case INTEL_855_GMCH_GMS_DISABLED: | |
245 | ERR_MSG("video memory is disabled\n"); | |
246 | return 0; | |
247 | default: | |
248 | ERR_MSG("unexpected GMCH_GMS value: 0x%02x\n", | |
249 | tmp & INTEL_855_GMCH_GMS_MASK); | |
250 | return 1; | |
251 | } | |
252 | } | |
253 | } | |
254 | ||
689c9568 | 255 | int intelfbhw_check_non_crt(struct intelfb_info *dinfo) |
1da177e4 LT |
256 | { |
257 | int dvo = 0; | |
258 | ||
259 | if (INREG(LVDS) & PORT_ENABLE) | |
260 | dvo |= LVDS_PORT; | |
261 | if (INREG(DVOA) & PORT_ENABLE) | |
262 | dvo |= DVOA_PORT; | |
263 | if (INREG(DVOB) & PORT_ENABLE) | |
264 | dvo |= DVOB_PORT; | |
265 | if (INREG(DVOC) & PORT_ENABLE) | |
266 | dvo |= DVOC_PORT; | |
267 | ||
268 | return dvo; | |
269 | } | |
270 | ||
689c9568 | 271 | const char * intelfbhw_dvo_to_string(int dvo) |
1da177e4 LT |
272 | { |
273 | if (dvo & DVOA_PORT) | |
274 | return "DVO port A"; | |
275 | else if (dvo & DVOB_PORT) | |
276 | return "DVO port B"; | |
277 | else if (dvo & DVOC_PORT) | |
278 | return "DVO port C"; | |
279 | else if (dvo & LVDS_PORT) | |
280 | return "LVDS port"; | |
281 | else | |
282 | return NULL; | |
283 | } | |
284 | ||
285 | ||
689c9568 KH |
286 | int intelfbhw_validate_mode(struct intelfb_info *dinfo, |
287 | struct fb_var_screeninfo *var) | |
1da177e4 LT |
288 | { |
289 | int bytes_per_pixel; | |
290 | int tmp; | |
291 | ||
292 | #if VERBOSE > 0 | |
293 | DBG_MSG("intelfbhw_validate_mode\n"); | |
294 | #endif | |
295 | ||
296 | bytes_per_pixel = var->bits_per_pixel / 8; | |
297 | if (bytes_per_pixel == 3) | |
298 | bytes_per_pixel = 4; | |
299 | ||
300 | /* Check if enough video memory. */ | |
301 | tmp = var->yres_virtual * var->xres_virtual * bytes_per_pixel; | |
302 | if (tmp > dinfo->fb.size) { | |
303 | WRN_MSG("Not enough video ram for mode " | |
304 | "(%d KByte vs %d KByte).\n", | |
305 | BtoKB(tmp), BtoKB(dinfo->fb.size)); | |
306 | return 1; | |
307 | } | |
308 | ||
309 | /* Check if x/y limits are OK. */ | |
310 | if (var->xres - 1 > HACTIVE_MASK) { | |
311 | WRN_MSG("X resolution too large (%d vs %d).\n", | |
312 | var->xres, HACTIVE_MASK + 1); | |
313 | return 1; | |
314 | } | |
315 | if (var->yres - 1 > VACTIVE_MASK) { | |
316 | WRN_MSG("Y resolution too large (%d vs %d).\n", | |
317 | var->yres, VACTIVE_MASK + 1); | |
318 | return 1; | |
319 | } | |
28ebe4f6 KH |
320 | if (var->xres < 4) { |
321 | WRN_MSG("X resolution too small (%d vs 4).\n", var->xres); | |
322 | return 1; | |
323 | } | |
324 | if (var->yres < 4) { | |
325 | WRN_MSG("Y resolution too small (%d vs 4).\n", var->yres); | |
326 | return 1; | |
327 | } | |
1da177e4 | 328 | |
10b98368 | 329 | /* Check for doublescan modes. */ |
1da177e4 LT |
330 | if (var->vmode & FB_VMODE_DOUBLE) { |
331 | WRN_MSG("Mode is double-scan.\n"); | |
332 | return 1; | |
333 | } | |
334 | ||
28ebe4f6 KH |
335 | if ((var->vmode & FB_VMODE_INTERLACED) && (var->yres & 1)) { |
336 | WRN_MSG("Odd number of lines in interlaced mode\n"); | |
337 | return 1; | |
338 | } | |
339 | ||
1da177e4 LT |
340 | /* Check if clock is OK. */ |
341 | tmp = 1000000000 / var->pixclock; | |
342 | if (tmp < MIN_CLOCK) { | |
343 | WRN_MSG("Pixel clock is too low (%d MHz vs %d MHz).\n", | |
344 | (tmp + 500) / 1000, MIN_CLOCK / 1000); | |
345 | return 1; | |
346 | } | |
347 | if (tmp > MAX_CLOCK) { | |
348 | WRN_MSG("Pixel clock is too high (%d MHz vs %d MHz).\n", | |
349 | (tmp + 500) / 1000, MAX_CLOCK / 1000); | |
350 | return 1; | |
351 | } | |
352 | ||
353 | return 0; | |
354 | } | |
355 | ||
689c9568 | 356 | int intelfbhw_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) |
1da177e4 LT |
357 | { |
358 | struct intelfb_info *dinfo = GET_DINFO(info); | |
359 | u32 offset, xoffset, yoffset; | |
360 | ||
361 | #if VERBOSE > 0 | |
362 | DBG_MSG("intelfbhw_pan_display\n"); | |
363 | #endif | |
364 | ||
365 | xoffset = ROUND_DOWN_TO(var->xoffset, 8); | |
366 | yoffset = var->yoffset; | |
367 | ||
368 | if ((xoffset + var->xres > var->xres_virtual) || | |
369 | (yoffset + var->yres > var->yres_virtual)) | |
370 | return -EINVAL; | |
371 | ||
372 | offset = (yoffset * dinfo->pitch) + | |
373 | (xoffset * var->bits_per_pixel) / 8; | |
374 | ||
375 | offset += dinfo->fb.offset << 12; | |
376 | ||
f80d0d23 | 377 | dinfo->vsync.pan_offset = offset; |
689c9568 | 378 | if ((var->activate & FB_ACTIVATE_VBL) && |
394d3af7 | 379 | !intelfbhw_enable_irq(dinfo)) |
f80d0d23 | 380 | dinfo->vsync.pan_display = 1; |
689c9568 | 381 | else { |
f80d0d23 EH |
382 | dinfo->vsync.pan_display = 0; |
383 | OUTREG(DSPABASE, offset); | |
384 | } | |
1da177e4 LT |
385 | |
386 | return 0; | |
387 | } | |
388 | ||
389 | /* Blank the screen. */ | |
689c9568 | 390 | void intelfbhw_do_blank(int blank, struct fb_info *info) |
1da177e4 LT |
391 | { |
392 | struct intelfb_info *dinfo = GET_DINFO(info); | |
393 | u32 tmp; | |
394 | ||
395 | #if VERBOSE > 0 | |
396 | DBG_MSG("intelfbhw_do_blank: blank is %d\n", blank); | |
397 | #endif | |
398 | ||
399 | /* Turn plane A on or off */ | |
400 | tmp = INREG(DSPACNTR); | |
401 | if (blank) | |
402 | tmp &= ~DISPPLANE_PLANE_ENABLE; | |
403 | else | |
404 | tmp |= DISPPLANE_PLANE_ENABLE; | |
405 | OUTREG(DSPACNTR, tmp); | |
406 | /* Flush */ | |
407 | tmp = INREG(DSPABASE); | |
408 | OUTREG(DSPABASE, tmp); | |
409 | ||
410 | /* Turn off/on the HW cursor */ | |
411 | #if VERBOSE > 0 | |
412 | DBG_MSG("cursor_on is %d\n", dinfo->cursor_on); | |
413 | #endif | |
414 | if (dinfo->cursor_on) { | |
689c9568 | 415 | if (blank) |
1da177e4 | 416 | intelfbhw_cursor_hide(dinfo); |
689c9568 | 417 | else |
1da177e4 | 418 | intelfbhw_cursor_show(dinfo); |
1da177e4 LT |
419 | dinfo->cursor_on = 1; |
420 | } | |
421 | dinfo->cursor_blanked = blank; | |
422 | ||
423 | /* Set DPMS level */ | |
424 | tmp = INREG(ADPA) & ~ADPA_DPMS_CONTROL_MASK; | |
425 | switch (blank) { | |
426 | case FB_BLANK_UNBLANK: | |
427 | case FB_BLANK_NORMAL: | |
428 | tmp |= ADPA_DPMS_D0; | |
429 | break; | |
430 | case FB_BLANK_VSYNC_SUSPEND: | |
431 | tmp |= ADPA_DPMS_D1; | |
432 | break; | |
433 | case FB_BLANK_HSYNC_SUSPEND: | |
434 | tmp |= ADPA_DPMS_D2; | |
435 | break; | |
436 | case FB_BLANK_POWERDOWN: | |
437 | tmp |= ADPA_DPMS_D3; | |
438 | break; | |
439 | } | |
440 | OUTREG(ADPA, tmp); | |
441 | ||
442 | return; | |
443 | } | |
444 | ||
445 | ||
689c9568 KH |
446 | void intelfbhw_setcolreg(struct intelfb_info *dinfo, unsigned regno, |
447 | unsigned red, unsigned green, unsigned blue, | |
448 | unsigned transp) | |
1da177e4 | 449 | { |
ee5618f4 KH |
450 | u32 palette_reg = (dinfo->pipe == PIPE_A) ? |
451 | PALETTE_A : PALETTE_B; | |
452 | ||
1da177e4 LT |
453 | #if VERBOSE > 0 |
454 | DBG_MSG("intelfbhw_setcolreg: %d: (%d, %d, %d)\n", | |
455 | regno, red, green, blue); | |
456 | #endif | |
457 | ||
1da177e4 LT |
458 | OUTREG(palette_reg + (regno << 2), |
459 | (red << PALETTE_8_RED_SHIFT) | | |
460 | (green << PALETTE_8_GREEN_SHIFT) | | |
461 | (blue << PALETTE_8_BLUE_SHIFT)); | |
462 | } | |
463 | ||
464 | ||
689c9568 KH |
465 | int intelfbhw_read_hw_state(struct intelfb_info *dinfo, |
466 | struct intelfb_hwstate *hw, int flag) | |
1da177e4 LT |
467 | { |
468 | int i; | |
469 | ||
470 | #if VERBOSE > 0 | |
471 | DBG_MSG("intelfbhw_read_hw_state\n"); | |
472 | #endif | |
473 | ||
474 | if (!hw || !dinfo) | |
475 | return -1; | |
476 | ||
477 | /* Read in as much of the HW state as possible. */ | |
478 | hw->vga0_divisor = INREG(VGA0_DIVISOR); | |
479 | hw->vga1_divisor = INREG(VGA1_DIVISOR); | |
480 | hw->vga_pd = INREG(VGAPD); | |
481 | hw->dpll_a = INREG(DPLL_A); | |
482 | hw->dpll_b = INREG(DPLL_B); | |
483 | hw->fpa0 = INREG(FPA0); | |
484 | hw->fpa1 = INREG(FPA1); | |
485 | hw->fpb0 = INREG(FPB0); | |
486 | hw->fpb1 = INREG(FPB1); | |
487 | ||
488 | if (flag == 1) | |
489 | return flag; | |
490 | ||
491 | #if 0 | |
492 | /* This seems to be a problem with the 852GM/855GM */ | |
493 | for (i = 0; i < PALETTE_8_ENTRIES; i++) { | |
494 | hw->palette_a[i] = INREG(PALETTE_A + (i << 2)); | |
495 | hw->palette_b[i] = INREG(PALETTE_B + (i << 2)); | |
496 | } | |
497 | #endif | |
498 | ||
499 | if (flag == 2) | |
500 | return flag; | |
501 | ||
502 | hw->htotal_a = INREG(HTOTAL_A); | |
503 | hw->hblank_a = INREG(HBLANK_A); | |
504 | hw->hsync_a = INREG(HSYNC_A); | |
505 | hw->vtotal_a = INREG(VTOTAL_A); | |
506 | hw->vblank_a = INREG(VBLANK_A); | |
507 | hw->vsync_a = INREG(VSYNC_A); | |
508 | hw->src_size_a = INREG(SRC_SIZE_A); | |
509 | hw->bclrpat_a = INREG(BCLRPAT_A); | |
510 | hw->htotal_b = INREG(HTOTAL_B); | |
511 | hw->hblank_b = INREG(HBLANK_B); | |
512 | hw->hsync_b = INREG(HSYNC_B); | |
513 | hw->vtotal_b = INREG(VTOTAL_B); | |
514 | hw->vblank_b = INREG(VBLANK_B); | |
515 | hw->vsync_b = INREG(VSYNC_B); | |
516 | hw->src_size_b = INREG(SRC_SIZE_B); | |
517 | hw->bclrpat_b = INREG(BCLRPAT_B); | |
518 | ||
519 | if (flag == 3) | |
520 | return flag; | |
521 | ||
522 | hw->adpa = INREG(ADPA); | |
523 | hw->dvoa = INREG(DVOA); | |
524 | hw->dvob = INREG(DVOB); | |
525 | hw->dvoc = INREG(DVOC); | |
526 | hw->dvoa_srcdim = INREG(DVOA_SRCDIM); | |
527 | hw->dvob_srcdim = INREG(DVOB_SRCDIM); | |
528 | hw->dvoc_srcdim = INREG(DVOC_SRCDIM); | |
529 | hw->lvds = INREG(LVDS); | |
530 | ||
531 | if (flag == 4) | |
532 | return flag; | |
533 | ||
534 | hw->pipe_a_conf = INREG(PIPEACONF); | |
535 | hw->pipe_b_conf = INREG(PIPEBCONF); | |
536 | hw->disp_arb = INREG(DISPARB); | |
537 | ||
538 | if (flag == 5) | |
539 | return flag; | |
540 | ||
541 | hw->cursor_a_control = INREG(CURSOR_A_CONTROL); | |
542 | hw->cursor_b_control = INREG(CURSOR_B_CONTROL); | |
543 | hw->cursor_a_base = INREG(CURSOR_A_BASEADDR); | |
544 | hw->cursor_b_base = INREG(CURSOR_B_BASEADDR); | |
545 | ||
546 | if (flag == 6) | |
547 | return flag; | |
548 | ||
549 | for (i = 0; i < 4; i++) { | |
550 | hw->cursor_a_palette[i] = INREG(CURSOR_A_PALETTE0 + (i << 2)); | |
551 | hw->cursor_b_palette[i] = INREG(CURSOR_B_PALETTE0 + (i << 2)); | |
552 | } | |
553 | ||
554 | if (flag == 7) | |
555 | return flag; | |
556 | ||
557 | hw->cursor_size = INREG(CURSOR_SIZE); | |
558 | ||
559 | if (flag == 8) | |
560 | return flag; | |
561 | ||
562 | hw->disp_a_ctrl = INREG(DSPACNTR); | |
563 | hw->disp_b_ctrl = INREG(DSPBCNTR); | |
564 | hw->disp_a_base = INREG(DSPABASE); | |
565 | hw->disp_b_base = INREG(DSPBBASE); | |
566 | hw->disp_a_stride = INREG(DSPASTRIDE); | |
567 | hw->disp_b_stride = INREG(DSPBSTRIDE); | |
568 | ||
569 | if (flag == 9) | |
570 | return flag; | |
571 | ||
572 | hw->vgacntrl = INREG(VGACNTRL); | |
573 | ||
574 | if (flag == 10) | |
575 | return flag; | |
576 | ||
577 | hw->add_id = INREG(ADD_ID); | |
578 | ||
579 | if (flag == 11) | |
580 | return flag; | |
581 | ||
582 | for (i = 0; i < 7; i++) { | |
583 | hw->swf0x[i] = INREG(SWF00 + (i << 2)); | |
584 | hw->swf1x[i] = INREG(SWF10 + (i << 2)); | |
585 | if (i < 3) | |
586 | hw->swf3x[i] = INREG(SWF30 + (i << 2)); | |
587 | } | |
588 | ||
589 | for (i = 0; i < 8; i++) | |
590 | hw->fence[i] = INREG(FENCE + (i << 2)); | |
591 | ||
592 | hw->instpm = INREG(INSTPM); | |
593 | hw->mem_mode = INREG(MEM_MODE); | |
594 | hw->fw_blc_0 = INREG(FW_BLC_0); | |
595 | hw->fw_blc_1 = INREG(FW_BLC_1); | |
596 | ||
9a5f019b EH |
597 | hw->hwstam = INREG16(HWSTAM); |
598 | hw->ier = INREG16(IER); | |
599 | hw->iir = INREG16(IIR); | |
600 | hw->imr = INREG16(IMR); | |
601 | ||
1da177e4 LT |
602 | return 0; |
603 | } | |
604 | ||
605 | ||
d024960c DA |
606 | static int calc_vclock3(int index, int m, int n, int p) |
607 | { | |
7679f4d6 DA |
608 | if (p == 0 || n == 0) |
609 | return 0; | |
3aff13cf | 610 | return plls[index].ref_clk * m / n / p; |
d024960c | 611 | } |
8b91b0b4 | 612 | |
689c9568 KH |
613 | static int calc_vclock(int index, int m1, int m2, int n, int p1, int p2, |
614 | int lvds) | |
d024960c | 615 | { |
c9daa873 DA |
616 | struct pll_min_max *pll = &plls[index]; |
617 | u32 m, vco, p; | |
618 | ||
619 | m = (5 * (m1 + 2)) + (m2 + 2); | |
620 | n += 2; | |
621 | vco = pll->ref_clk * m / n; | |
622 | ||
689c9568 | 623 | if (index == PLLS_I8xx) |
c9daa873 | 624 | p = ((p1 + 2) * (1 << (p2 + 1))); |
689c9568 | 625 | else |
c9daa873 | 626 | p = ((p1) * (p2 ? 5 : 10)); |
c9daa873 | 627 | return vco / p; |
d024960c DA |
628 | } |
629 | ||
4dc3595f | 630 | #if REGDUMP |
689c9568 KH |
631 | static void intelfbhw_get_p1p2(struct intelfb_info *dinfo, int dpll, |
632 | int *o_p1, int *o_p2) | |
2abac1db DA |
633 | { |
634 | int p1, p2; | |
635 | ||
636 | if (IS_I9XX(dinfo)) { | |
637 | if (dpll & DPLL_P1_FORCE_DIV2) | |
638 | p1 = 1; | |
639 | else | |
640 | p1 = (dpll >> DPLL_P1_SHIFT) & 0xff; | |
689c9568 | 641 | |
2abac1db DA |
642 | p1 = ffs(p1); |
643 | ||
644 | p2 = (dpll >> DPLL_I9XX_P2_SHIFT) & DPLL_P2_MASK; | |
645 | } else { | |
646 | if (dpll & DPLL_P1_FORCE_DIV2) | |
647 | p1 = 0; | |
648 | else | |
649 | p1 = (dpll >> DPLL_P1_SHIFT) & DPLL_P1_MASK; | |
650 | p2 = (dpll >> DPLL_P2_SHIFT) & DPLL_P2_MASK; | |
651 | } | |
652 | ||
653 | *o_p1 = p1; | |
654 | *o_p2 = p2; | |
655 | } | |
4dc3595f | 656 | #endif |
2abac1db DA |
657 | |
658 | ||
689c9568 KH |
659 | void intelfbhw_print_hw_state(struct intelfb_info *dinfo, |
660 | struct intelfb_hwstate *hw) | |
1da177e4 LT |
661 | { |
662 | #if REGDUMP | |
663 | int i, m1, m2, n, p1, p2; | |
d024960c | 664 | int index = dinfo->pll_index; |
1da177e4 | 665 | DBG_MSG("intelfbhw_print_hw_state\n"); |
3aff13cf | 666 | |
f84fcb06 | 667 | if (!hw) |
1da177e4 LT |
668 | return; |
669 | /* Read in as much of the HW state as possible. */ | |
670 | printk("hw state dump start\n"); | |
671 | printk(" VGA0_DIVISOR: 0x%08x\n", hw->vga0_divisor); | |
672 | printk(" VGA1_DIVISOR: 0x%08x\n", hw->vga1_divisor); | |
689c9568 | 673 | printk(" VGAPD: 0x%08x\n", hw->vga_pd); |
1da177e4 LT |
674 | n = (hw->vga0_divisor >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK; |
675 | m1 = (hw->vga0_divisor >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK; | |
676 | m2 = (hw->vga0_divisor >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK; | |
3aff13cf | 677 | |
2abac1db | 678 | intelfbhw_get_p1p2(dinfo, hw->vga_pd, &p1, &p2); |
3aff13cf | 679 | |
1da177e4 | 680 | printk(" VGA0: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n", |
d024960c | 681 | m1, m2, n, p1, p2); |
8b91b0b4 | 682 | printk(" VGA0: clock is %d\n", |
3aff13cf DA |
683 | calc_vclock(index, m1, m2, n, p1, p2, 0)); |
684 | ||
1da177e4 LT |
685 | n = (hw->vga1_divisor >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK; |
686 | m1 = (hw->vga1_divisor >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK; | |
687 | m2 = (hw->vga1_divisor >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK; | |
2abac1db DA |
688 | |
689 | intelfbhw_get_p1p2(dinfo, hw->vga_pd, &p1, &p2); | |
1da177e4 | 690 | printk(" VGA1: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n", |
d024960c | 691 | m1, m2, n, p1, p2); |
689c9568 KH |
692 | printk(" VGA1: clock is %d\n", |
693 | calc_vclock(index, m1, m2, n, p1, p2, 0)); | |
3aff13cf | 694 | |
1da177e4 LT |
695 | printk(" DPLL_A: 0x%08x\n", hw->dpll_a); |
696 | printk(" DPLL_B: 0x%08x\n", hw->dpll_b); | |
697 | printk(" FPA0: 0x%08x\n", hw->fpa0); | |
698 | printk(" FPA1: 0x%08x\n", hw->fpa1); | |
699 | printk(" FPB0: 0x%08x\n", hw->fpb0); | |
700 | printk(" FPB1: 0x%08x\n", hw->fpb1); | |
3aff13cf | 701 | |
1da177e4 LT |
702 | n = (hw->fpa0 >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK; |
703 | m1 = (hw->fpa0 >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK; | |
704 | m2 = (hw->fpa0 >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK; | |
3aff13cf | 705 | |
2abac1db | 706 | intelfbhw_get_p1p2(dinfo, hw->dpll_a, &p1, &p2); |
3aff13cf | 707 | |
1da177e4 | 708 | printk(" PLLA0: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n", |
d024960c | 709 | m1, m2, n, p1, p2); |
689c9568 KH |
710 | printk(" PLLA0: clock is %d\n", |
711 | calc_vclock(index, m1, m2, n, p1, p2, 0)); | |
3aff13cf | 712 | |
1da177e4 LT |
713 | n = (hw->fpa1 >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK; |
714 | m1 = (hw->fpa1 >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK; | |
715 | m2 = (hw->fpa1 >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK; | |
3aff13cf | 716 | |
2abac1db | 717 | intelfbhw_get_p1p2(dinfo, hw->dpll_a, &p1, &p2); |
3aff13cf | 718 | |
1da177e4 | 719 | printk(" PLLA1: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n", |
d024960c | 720 | m1, m2, n, p1, p2); |
689c9568 KH |
721 | printk(" PLLA1: clock is %d\n", |
722 | calc_vclock(index, m1, m2, n, p1, p2, 0)); | |
3aff13cf | 723 | |
1da177e4 LT |
724 | #if 0 |
725 | printk(" PALETTE_A:\n"); | |
726 | for (i = 0; i < PALETTE_8_ENTRIES) | |
d024960c | 727 | printk(" %3d: 0x%08x\n", i, hw->palette_a[i]); |
1da177e4 LT |
728 | printk(" PALETTE_B:\n"); |
729 | for (i = 0; i < PALETTE_8_ENTRIES) | |
d024960c | 730 | printk(" %3d: 0x%08x\n", i, hw->palette_b[i]); |
1da177e4 LT |
731 | #endif |
732 | ||
733 | printk(" HTOTAL_A: 0x%08x\n", hw->htotal_a); | |
734 | printk(" HBLANK_A: 0x%08x\n", hw->hblank_a); | |
735 | printk(" HSYNC_A: 0x%08x\n", hw->hsync_a); | |
736 | printk(" VTOTAL_A: 0x%08x\n", hw->vtotal_a); | |
737 | printk(" VBLANK_A: 0x%08x\n", hw->vblank_a); | |
738 | printk(" VSYNC_A: 0x%08x\n", hw->vsync_a); | |
739 | printk(" SRC_SIZE_A: 0x%08x\n", hw->src_size_a); | |
740 | printk(" BCLRPAT_A: 0x%08x\n", hw->bclrpat_a); | |
741 | printk(" HTOTAL_B: 0x%08x\n", hw->htotal_b); | |
742 | printk(" HBLANK_B: 0x%08x\n", hw->hblank_b); | |
743 | printk(" HSYNC_B: 0x%08x\n", hw->hsync_b); | |
744 | printk(" VTOTAL_B: 0x%08x\n", hw->vtotal_b); | |
745 | printk(" VBLANK_B: 0x%08x\n", hw->vblank_b); | |
746 | printk(" VSYNC_B: 0x%08x\n", hw->vsync_b); | |
747 | printk(" SRC_SIZE_B: 0x%08x\n", hw->src_size_b); | |
748 | printk(" BCLRPAT_B: 0x%08x\n", hw->bclrpat_b); | |
749 | ||
750 | printk(" ADPA: 0x%08x\n", hw->adpa); | |
751 | printk(" DVOA: 0x%08x\n", hw->dvoa); | |
752 | printk(" DVOB: 0x%08x\n", hw->dvob); | |
753 | printk(" DVOC: 0x%08x\n", hw->dvoc); | |
754 | printk(" DVOA_SRCDIM: 0x%08x\n", hw->dvoa_srcdim); | |
755 | printk(" DVOB_SRCDIM: 0x%08x\n", hw->dvob_srcdim); | |
756 | printk(" DVOC_SRCDIM: 0x%08x\n", hw->dvoc_srcdim); | |
757 | printk(" LVDS: 0x%08x\n", hw->lvds); | |
758 | ||
759 | printk(" PIPEACONF: 0x%08x\n", hw->pipe_a_conf); | |
760 | printk(" PIPEBCONF: 0x%08x\n", hw->pipe_b_conf); | |
761 | printk(" DISPARB: 0x%08x\n", hw->disp_arb); | |
762 | ||
763 | printk(" CURSOR_A_CONTROL: 0x%08x\n", hw->cursor_a_control); | |
764 | printk(" CURSOR_B_CONTROL: 0x%08x\n", hw->cursor_b_control); | |
765 | printk(" CURSOR_A_BASEADDR: 0x%08x\n", hw->cursor_a_base); | |
766 | printk(" CURSOR_B_BASEADDR: 0x%08x\n", hw->cursor_b_base); | |
767 | ||
768 | printk(" CURSOR_A_PALETTE: "); | |
769 | for (i = 0; i < 4; i++) { | |
770 | printk("0x%08x", hw->cursor_a_palette[i]); | |
771 | if (i < 3) | |
772 | printk(", "); | |
773 | } | |
774 | printk("\n"); | |
775 | printk(" CURSOR_B_PALETTE: "); | |
776 | for (i = 0; i < 4; i++) { | |
777 | printk("0x%08x", hw->cursor_b_palette[i]); | |
778 | if (i < 3) | |
779 | printk(", "); | |
780 | } | |
781 | printk("\n"); | |
782 | ||
783 | printk(" CURSOR_SIZE: 0x%08x\n", hw->cursor_size); | |
784 | ||
785 | printk(" DSPACNTR: 0x%08x\n", hw->disp_a_ctrl); | |
786 | printk(" DSPBCNTR: 0x%08x\n", hw->disp_b_ctrl); | |
787 | printk(" DSPABASE: 0x%08x\n", hw->disp_a_base); | |
788 | printk(" DSPBBASE: 0x%08x\n", hw->disp_b_base); | |
789 | printk(" DSPASTRIDE: 0x%08x\n", hw->disp_a_stride); | |
790 | printk(" DSPBSTRIDE: 0x%08x\n", hw->disp_b_stride); | |
791 | ||
792 | printk(" VGACNTRL: 0x%08x\n", hw->vgacntrl); | |
793 | printk(" ADD_ID: 0x%08x\n", hw->add_id); | |
794 | ||
795 | for (i = 0; i < 7; i++) { | |
796 | printk(" SWF0%d 0x%08x\n", i, | |
797 | hw->swf0x[i]); | |
798 | } | |
799 | for (i = 0; i < 7; i++) { | |
800 | printk(" SWF1%d 0x%08x\n", i, | |
801 | hw->swf1x[i]); | |
802 | } | |
803 | for (i = 0; i < 3; i++) { | |
804 | printk(" SWF3%d 0x%08x\n", i, | |
d024960c | 805 | hw->swf3x[i]); |
1da177e4 LT |
806 | } |
807 | for (i = 0; i < 8; i++) | |
808 | printk(" FENCE%d 0x%08x\n", i, | |
d024960c | 809 | hw->fence[i]); |
8b91b0b4 | 810 | |
1da177e4 LT |
811 | printk(" INSTPM 0x%08x\n", hw->instpm); |
812 | printk(" MEM_MODE 0x%08x\n", hw->mem_mode); | |
813 | printk(" FW_BLC_0 0x%08x\n", hw->fw_blc_0); | |
814 | printk(" FW_BLC_1 0x%08x\n", hw->fw_blc_1); | |
815 | ||
9a5f019b EH |
816 | printk(" HWSTAM 0x%04x\n", hw->hwstam); |
817 | printk(" IER 0x%04x\n", hw->ier); | |
818 | printk(" IIR 0x%04x\n", hw->iir); | |
819 | printk(" IMR 0x%04x\n", hw->imr); | |
1da177e4 LT |
820 | printk("hw state dump end\n"); |
821 | #endif | |
822 | } | |
823 | ||
8b91b0b4 | 824 | |
d024960c | 825 | |
1da177e4 | 826 | /* Split the M parameter into M1 and M2. */ |
689c9568 KH |
827 | static int splitm(int index, unsigned int m, unsigned int *retm1, |
828 | unsigned int *retm2) | |
1da177e4 LT |
829 | { |
830 | int m1, m2; | |
8492f081 | 831 | int testm; |
c9daa873 DA |
832 | struct pll_min_max *pll = &plls[index]; |
833 | ||
8492f081 | 834 | /* no point optimising too much - brute force m */ |
c9daa873 DA |
835 | for (m1 = pll->min_m1; m1 < pll->max_m1 + 1; m1++) { |
836 | for (m2 = pll->min_m2; m2 < pll->max_m2 + 1; m2++) { | |
3aff13cf | 837 | testm = (5 * (m1 + 2)) + (m2 + 2); |
8b91b0b4 DA |
838 | if (testm == m) { |
839 | *retm1 = (unsigned int)m1; | |
840 | *retm2 = (unsigned int)m2; | |
841 | return 0; | |
842 | } | |
843 | } | |
1da177e4 | 844 | } |
8492f081 | 845 | return 1; |
1da177e4 LT |
846 | } |
847 | ||
848 | /* Split the P parameter into P1 and P2. */ | |
689c9568 KH |
849 | static int splitp(int index, unsigned int p, unsigned int *retp1, |
850 | unsigned int *retp2) | |
1da177e4 LT |
851 | { |
852 | int p1, p2; | |
c9daa873 | 853 | struct pll_min_max *pll = &plls[index]; |
1da177e4 | 854 | |
8b91b0b4 | 855 | if (index == PLLS_I9xx) { |
51d79747 | 856 | p2 = (p % 10) ? 1 : 0; |
3aff13cf DA |
857 | |
858 | p1 = p / (p2 ? 5 : 10); | |
859 | ||
d024960c DA |
860 | *retp1 = (unsigned int)p1; |
861 | *retp2 = (unsigned int)p2; | |
862 | return 0; | |
863 | } | |
864 | ||
c9daa873 DA |
865 | if (p % 4 == 0) |
866 | p2 = 1; | |
867 | else | |
868 | p2 = 0; | |
869 | p1 = (p / (1 << (p2 + 1))) - 2; | |
870 | if (p % 4 == 0 && p1 < pll->min_p1) { | |
871 | p2 = 0; | |
1da177e4 LT |
872 | p1 = (p / (1 << (p2 + 1))) - 2; |
873 | } | |
c9daa873 DA |
874 | if (p1 < pll->min_p1 || p1 > pll->max_p1 || |
875 | (p1 + 2) * (1 << (p2 + 1)) != p) { | |
876 | return 1; | |
877 | } else { | |
878 | *retp1 = (unsigned int)p1; | |
879 | *retp2 = (unsigned int)p2; | |
880 | return 0; | |
881 | } | |
1da177e4 LT |
882 | } |
883 | ||
689c9568 KH |
884 | static int calc_pll_params(int index, int clock, u32 *retm1, u32 *retm2, |
885 | u32 *retn, u32 *retp1, u32 *retp2, u32 *retclock) | |
1da177e4 | 886 | { |
7679f4d6 DA |
887 | u32 m1, m2, n, p1, p2, n1, testm; |
888 | u32 f_vco, p, p_best = 0, m, f_out = 0; | |
1da177e4 LT |
889 | u32 err_max, err_target, err_best = 10000000; |
890 | u32 n_best = 0, m_best = 0, f_best, f_err; | |
51d79747 DA |
891 | u32 p_min, p_max, p_inc, div_max; |
892 | struct pll_min_max *pll = &plls[index]; | |
1da177e4 LT |
893 | |
894 | /* Accept 0.5% difference, but aim for 0.1% */ | |
895 | err_max = 5 * clock / 1000; | |
896 | err_target = clock / 1000; | |
897 | ||
898 | DBG_MSG("Clock is %d\n", clock); | |
899 | ||
51d79747 | 900 | div_max = pll->max_vco / clock; |
1da177e4 | 901 | |
51d79747 DA |
902 | p_inc = (clock <= pll->p_transition_clk) ? pll->p_inc_lo : pll->p_inc_hi; |
903 | p_min = p_inc; | |
1da177e4 | 904 | p_max = ROUND_DOWN_TO(div_max, p_inc); |
51d79747 DA |
905 | if (p_min < pll->min_p) |
906 | p_min = pll->min_p; | |
907 | if (p_max > pll->max_p) | |
908 | p_max = pll->max_p; | |
1da177e4 LT |
909 | |
910 | DBG_MSG("p range is %d-%d (%d)\n", p_min, p_max, p_inc); | |
911 | ||
912 | p = p_min; | |
913 | do { | |
7258b11d | 914 | if (splitp(index, p, &p1, &p2)) { |
1da177e4 LT |
915 | WRN_MSG("cannot split p = %d\n", p); |
916 | p += p_inc; | |
917 | continue; | |
918 | } | |
51d79747 | 919 | n = pll->min_n; |
1da177e4 LT |
920 | f_vco = clock * p; |
921 | ||
922 | do { | |
51d79747 DA |
923 | m = ROUND_UP_TO(f_vco * n, pll->ref_clk) / pll->ref_clk; |
924 | if (m < pll->min_m) | |
925 | m = pll->min_m + 1; | |
926 | if (m > pll->max_m) | |
927 | m = pll->max_m - 1; | |
7679f4d6 | 928 | for (testm = m - 1; testm <= m; testm++) { |
9c54ea95 | 929 | f_out = calc_vclock3(index, testm, n, p); |
c9daa873 | 930 | if (splitm(index, testm, &m1, &m2)) { |
9c54ea95 KH |
931 | WRN_MSG("cannot split m = %d\n", |
932 | testm); | |
7679f4d6 DA |
933 | continue; |
934 | } | |
935 | if (clock > f_out) | |
936 | f_err = clock - f_out; | |
937 | else/* slightly bias the error for bigger clocks */ | |
938 | f_err = f_out - clock + 1; | |
3aff13cf | 939 | |
7679f4d6 | 940 | if (f_err < err_best) { |
c9daa873 | 941 | m_best = testm; |
7679f4d6 DA |
942 | n_best = n; |
943 | p_best = p; | |
944 | f_best = f_out; | |
945 | err_best = f_err; | |
946 | } | |
1da177e4 LT |
947 | } |
948 | n++; | |
51d79747 | 949 | } while ((n <= pll->max_n) && (f_out >= clock)); |
1da177e4 LT |
950 | p += p_inc; |
951 | } while ((p <= p_max)); | |
952 | ||
953 | if (!m_best) { | |
954 | WRN_MSG("cannot find parameters for clock %d\n", clock); | |
955 | return 1; | |
956 | } | |
957 | m = m_best; | |
958 | n = n_best; | |
959 | p = p_best; | |
7258b11d DA |
960 | splitm(index, m, &m1, &m2); |
961 | splitp(index, p, &p1, &p2); | |
1da177e4 LT |
962 | n1 = n - 2; |
963 | ||
964 | DBG_MSG("m, n, p: %d (%d,%d), %d (%d), %d (%d,%d), " | |
965 | "f: %d (%d), VCO: %d\n", | |
966 | m, m1, m2, n, n1, p, p1, p2, | |
8b91b0b4 | 967 | calc_vclock3(index, m, n, p), |
3aff13cf | 968 | calc_vclock(index, m1, m2, n1, p1, p2, 0), |
d024960c | 969 | calc_vclock3(index, m, n, p) * p); |
1da177e4 LT |
970 | *retm1 = m1; |
971 | *retm2 = m2; | |
972 | *retn = n1; | |
973 | *retp1 = p1; | |
974 | *retp2 = p2; | |
3aff13cf | 975 | *retclock = calc_vclock(index, m1, m2, n1, p1, p2, 0); |
1da177e4 LT |
976 | |
977 | return 0; | |
978 | } | |
979 | ||
689c9568 KH |
980 | static __inline__ int check_overflow(u32 value, u32 limit, |
981 | const char *description) | |
1da177e4 LT |
982 | { |
983 | if (value > limit) { | |
984 | WRN_MSG("%s value %d exceeds limit %d\n", | |
985 | description, value, limit); | |
986 | return 1; | |
987 | } | |
988 | return 0; | |
989 | } | |
990 | ||
991 | /* It is assumed that hw is filled in with the initial state information. */ | |
689c9568 KH |
992 | int intelfbhw_mode_to_hw(struct intelfb_info *dinfo, |
993 | struct intelfb_hwstate *hw, | |
994 | struct fb_var_screeninfo *var) | |
1da177e4 LT |
995 | { |
996 | int pipe = PIPE_A; | |
997 | u32 *dpll, *fp0, *fp1; | |
998 | u32 m1, m2, n, p1, p2, clock_target, clock; | |
999 | u32 hsync_start, hsync_end, hblank_start, hblank_end, htotal, hactive; | |
1000 | u32 vsync_start, vsync_end, vblank_start, vblank_end, vtotal, vactive; | |
1001 | u32 vsync_pol, hsync_pol; | |
1002 | u32 *vs, *vb, *vt, *hs, *hb, *ht, *ss, *pipe_conf; | |
df7df8ab | 1003 | u32 stride_alignment; |
1da177e4 LT |
1004 | |
1005 | DBG_MSG("intelfbhw_mode_to_hw\n"); | |
1006 | ||
1007 | /* Disable VGA */ | |
1008 | hw->vgacntrl |= VGA_DISABLE; | |
1009 | ||
1010 | /* Check whether pipe A or pipe B is enabled. */ | |
1011 | if (hw->pipe_a_conf & PIPECONF_ENABLE) | |
1012 | pipe = PIPE_A; | |
1013 | else if (hw->pipe_b_conf & PIPECONF_ENABLE) | |
1014 | pipe = PIPE_B; | |
1015 | ||
1016 | /* Set which pipe's registers will be set. */ | |
1017 | if (pipe == PIPE_B) { | |
1018 | dpll = &hw->dpll_b; | |
1019 | fp0 = &hw->fpb0; | |
1020 | fp1 = &hw->fpb1; | |
1021 | hs = &hw->hsync_b; | |
1022 | hb = &hw->hblank_b; | |
1023 | ht = &hw->htotal_b; | |
1024 | vs = &hw->vsync_b; | |
1025 | vb = &hw->vblank_b; | |
1026 | vt = &hw->vtotal_b; | |
1027 | ss = &hw->src_size_b; | |
1028 | pipe_conf = &hw->pipe_b_conf; | |
1029 | } else { | |
1030 | dpll = &hw->dpll_a; | |
1031 | fp0 = &hw->fpa0; | |
1032 | fp1 = &hw->fpa1; | |
1033 | hs = &hw->hsync_a; | |
1034 | hb = &hw->hblank_a; | |
1035 | ht = &hw->htotal_a; | |
1036 | vs = &hw->vsync_a; | |
1037 | vb = &hw->vblank_a; | |
1038 | vt = &hw->vtotal_a; | |
1039 | ss = &hw->src_size_a; | |
1040 | pipe_conf = &hw->pipe_a_conf; | |
1041 | } | |
1042 | ||
1043 | /* Use ADPA register for sync control. */ | |
1044 | hw->adpa &= ~ADPA_USE_VGA_HVPOLARITY; | |
1045 | ||
1046 | /* sync polarity */ | |
1047 | hsync_pol = (var->sync & FB_SYNC_HOR_HIGH_ACT) ? | |
1048 | ADPA_SYNC_ACTIVE_HIGH : ADPA_SYNC_ACTIVE_LOW; | |
1049 | vsync_pol = (var->sync & FB_SYNC_VERT_HIGH_ACT) ? | |
1050 | ADPA_SYNC_ACTIVE_HIGH : ADPA_SYNC_ACTIVE_LOW; | |
1051 | hw->adpa &= ~((ADPA_SYNC_ACTIVE_MASK << ADPA_VSYNC_ACTIVE_SHIFT) | | |
1052 | (ADPA_SYNC_ACTIVE_MASK << ADPA_HSYNC_ACTIVE_SHIFT)); | |
1053 | hw->adpa |= (hsync_pol << ADPA_HSYNC_ACTIVE_SHIFT) | | |
1054 | (vsync_pol << ADPA_VSYNC_ACTIVE_SHIFT); | |
1055 | ||
1056 | /* Connect correct pipe to the analog port DAC */ | |
1057 | hw->adpa &= ~(PIPE_MASK << ADPA_PIPE_SELECT_SHIFT); | |
1058 | hw->adpa |= (pipe << ADPA_PIPE_SELECT_SHIFT); | |
1059 | ||
1060 | /* Set DPMS state to D0 (on) */ | |
1061 | hw->adpa &= ~ADPA_DPMS_CONTROL_MASK; | |
1062 | hw->adpa |= ADPA_DPMS_D0; | |
1063 | ||
1064 | hw->adpa |= ADPA_DAC_ENABLE; | |
1065 | ||
1066 | *dpll |= (DPLL_VCO_ENABLE | DPLL_VGA_MODE_DISABLE); | |
1067 | *dpll &= ~(DPLL_RATE_SELECT_MASK | DPLL_REFERENCE_SELECT_MASK); | |
1068 | *dpll |= (DPLL_REFERENCE_DEFAULT | DPLL_RATE_SELECT_FP0); | |
1069 | ||
1070 | /* Desired clock in kHz */ | |
1071 | clock_target = 1000000000 / var->pixclock; | |
1072 | ||
3aff13cf | 1073 | if (calc_pll_params(dinfo->pll_index, clock_target, &m1, &m2, |
8b91b0b4 | 1074 | &n, &p1, &p2, &clock)) { |
1da177e4 LT |
1075 | WRN_MSG("calc_pll_params failed\n"); |
1076 | return 1; | |
1077 | } | |
1078 | ||
1079 | /* Check for overflow. */ | |
1080 | if (check_overflow(p1, DPLL_P1_MASK, "PLL P1 parameter")) | |
1081 | return 1; | |
1082 | if (check_overflow(p2, DPLL_P2_MASK, "PLL P2 parameter")) | |
1083 | return 1; | |
1084 | if (check_overflow(m1, FP_DIVISOR_MASK, "PLL M1 parameter")) | |
1085 | return 1; | |
1086 | if (check_overflow(m2, FP_DIVISOR_MASK, "PLL M2 parameter")) | |
1087 | return 1; | |
1088 | if (check_overflow(n, FP_DIVISOR_MASK, "PLL N parameter")) | |
1089 | return 1; | |
1090 | ||
1091 | *dpll &= ~DPLL_P1_FORCE_DIV2; | |
1092 | *dpll &= ~((DPLL_P2_MASK << DPLL_P2_SHIFT) | | |
1093 | (DPLL_P1_MASK << DPLL_P1_SHIFT)); | |
3aff13cf DA |
1094 | |
1095 | if (IS_I9XX(dinfo)) { | |
1096 | *dpll |= (p2 << DPLL_I9XX_P2_SHIFT); | |
1097 | *dpll |= (1 << (p1 - 1)) << DPLL_P1_SHIFT; | |
689c9568 | 1098 | } else |
3aff13cf | 1099 | *dpll |= (p2 << DPLL_P2_SHIFT) | (p1 << DPLL_P1_SHIFT); |
3aff13cf | 1100 | |
1da177e4 LT |
1101 | *fp0 = (n << FP_N_DIVISOR_SHIFT) | |
1102 | (m1 << FP_M1_DIVISOR_SHIFT) | | |
1103 | (m2 << FP_M2_DIVISOR_SHIFT); | |
1104 | *fp1 = *fp0; | |
1105 | ||
1106 | hw->dvob &= ~PORT_ENABLE; | |
1107 | hw->dvoc &= ~PORT_ENABLE; | |
1108 | ||
1109 | /* Use display plane A. */ | |
1110 | hw->disp_a_ctrl |= DISPPLANE_PLANE_ENABLE; | |
1111 | hw->disp_a_ctrl &= ~DISPPLANE_GAMMA_ENABLE; | |
1112 | hw->disp_a_ctrl &= ~DISPPLANE_PIXFORMAT_MASK; | |
1113 | switch (intelfb_var_to_depth(var)) { | |
1114 | case 8: | |
1115 | hw->disp_a_ctrl |= DISPPLANE_8BPP | DISPPLANE_GAMMA_ENABLE; | |
1116 | break; | |
1117 | case 15: | |
1118 | hw->disp_a_ctrl |= DISPPLANE_15_16BPP; | |
1119 | break; | |
1120 | case 16: | |
1121 | hw->disp_a_ctrl |= DISPPLANE_16BPP; | |
1122 | break; | |
1123 | case 24: | |
1124 | hw->disp_a_ctrl |= DISPPLANE_32BPP_NO_ALPHA; | |
1125 | break; | |
1126 | } | |
1127 | hw->disp_a_ctrl &= ~(PIPE_MASK << DISPPLANE_SEL_PIPE_SHIFT); | |
1128 | hw->disp_a_ctrl |= (pipe << DISPPLANE_SEL_PIPE_SHIFT); | |
1129 | ||
1130 | /* Set CRTC registers. */ | |
1131 | hactive = var->xres; | |
1132 | hsync_start = hactive + var->right_margin; | |
1133 | hsync_end = hsync_start + var->hsync_len; | |
1134 | htotal = hsync_end + var->left_margin; | |
1135 | hblank_start = hactive; | |
1136 | hblank_end = htotal; | |
1137 | ||
1138 | DBG_MSG("H: act %d, ss %d, se %d, tot %d bs %d, be %d\n", | |
1139 | hactive, hsync_start, hsync_end, htotal, hblank_start, | |
1140 | hblank_end); | |
1141 | ||
1142 | vactive = var->yres; | |
28ebe4f6 KH |
1143 | if (var->vmode & FB_VMODE_INTERLACED) |
1144 | vactive--; /* the chip adds 2 halflines automatically */ | |
1da177e4 LT |
1145 | vsync_start = vactive + var->lower_margin; |
1146 | vsync_end = vsync_start + var->vsync_len; | |
1147 | vtotal = vsync_end + var->upper_margin; | |
1148 | vblank_start = vactive; | |
1149 | vblank_end = vtotal; | |
1150 | vblank_end = vsync_end + 1; | |
1151 | ||
1152 | DBG_MSG("V: act %d, ss %d, se %d, tot %d bs %d, be %d\n", | |
1153 | vactive, vsync_start, vsync_end, vtotal, vblank_start, | |
1154 | vblank_end); | |
1155 | ||
1156 | /* Adjust for register values, and check for overflow. */ | |
1157 | hactive--; | |
1158 | if (check_overflow(hactive, HACTIVE_MASK, "CRTC hactive")) | |
1159 | return 1; | |
1160 | hsync_start--; | |
1161 | if (check_overflow(hsync_start, HSYNCSTART_MASK, "CRTC hsync_start")) | |
1162 | return 1; | |
1163 | hsync_end--; | |
1164 | if (check_overflow(hsync_end, HSYNCEND_MASK, "CRTC hsync_end")) | |
1165 | return 1; | |
1166 | htotal--; | |
1167 | if (check_overflow(htotal, HTOTAL_MASK, "CRTC htotal")) | |
1168 | return 1; | |
1169 | hblank_start--; | |
1170 | if (check_overflow(hblank_start, HBLANKSTART_MASK, "CRTC hblank_start")) | |
1171 | return 1; | |
1172 | hblank_end--; | |
1173 | if (check_overflow(hblank_end, HBLANKEND_MASK, "CRTC hblank_end")) | |
1174 | return 1; | |
1175 | ||
1176 | vactive--; | |
1177 | if (check_overflow(vactive, VACTIVE_MASK, "CRTC vactive")) | |
1178 | return 1; | |
1179 | vsync_start--; | |
1180 | if (check_overflow(vsync_start, VSYNCSTART_MASK, "CRTC vsync_start")) | |
1181 | return 1; | |
1182 | vsync_end--; | |
1183 | if (check_overflow(vsync_end, VSYNCEND_MASK, "CRTC vsync_end")) | |
1184 | return 1; | |
1185 | vtotal--; | |
1186 | if (check_overflow(vtotal, VTOTAL_MASK, "CRTC vtotal")) | |
1187 | return 1; | |
1188 | vblank_start--; | |
1189 | if (check_overflow(vblank_start, VBLANKSTART_MASK, "CRTC vblank_start")) | |
1190 | return 1; | |
1191 | vblank_end--; | |
1192 | if (check_overflow(vblank_end, VBLANKEND_MASK, "CRTC vblank_end")) | |
1193 | return 1; | |
1194 | ||
1195 | *ht = (htotal << HTOTAL_SHIFT) | (hactive << HACTIVE_SHIFT); | |
1196 | *hb = (hblank_start << HBLANKSTART_SHIFT) | | |
1197 | (hblank_end << HSYNCEND_SHIFT); | |
1198 | *hs = (hsync_start << HSYNCSTART_SHIFT) | (hsync_end << HSYNCEND_SHIFT); | |
1199 | ||
1200 | *vt = (vtotal << VTOTAL_SHIFT) | (vactive << VACTIVE_SHIFT); | |
1201 | *vb = (vblank_start << VBLANKSTART_SHIFT) | | |
1202 | (vblank_end << VSYNCEND_SHIFT); | |
1203 | *vs = (vsync_start << VSYNCSTART_SHIFT) | (vsync_end << VSYNCEND_SHIFT); | |
1204 | *ss = (hactive << SRC_SIZE_HORIZ_SHIFT) | | |
1205 | (vactive << SRC_SIZE_VERT_SHIFT); | |
1206 | ||
3587c509 | 1207 | hw->disp_a_stride = dinfo->pitch; |
1da177e4 LT |
1208 | DBG_MSG("pitch is %d\n", hw->disp_a_stride); |
1209 | ||
1210 | hw->disp_a_base = hw->disp_a_stride * var->yoffset + | |
1211 | var->xoffset * var->bits_per_pixel / 8; | |
1212 | ||
1213 | hw->disp_a_base += dinfo->fb.offset << 12; | |
1214 | ||
1215 | /* Check stride alignment. */ | |
df7df8ab DM |
1216 | stride_alignment = IS_I9XX(dinfo) ? STRIDE_ALIGNMENT_I9XX : |
1217 | STRIDE_ALIGNMENT; | |
1218 | if (hw->disp_a_stride % stride_alignment != 0) { | |
1da177e4 | 1219 | WRN_MSG("display stride %d has bad alignment %d\n", |
df7df8ab | 1220 | hw->disp_a_stride, stride_alignment); |
1da177e4 LT |
1221 | return 1; |
1222 | } | |
1223 | ||
1224 | /* Set the palette to 8-bit mode. */ | |
1225 | *pipe_conf &= ~PIPECONF_GAMMA; | |
10b98368 KH |
1226 | |
1227 | if (var->vmode & FB_VMODE_INTERLACED) | |
1228 | *pipe_conf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; | |
1229 | else | |
1230 | *pipe_conf &= ~PIPECONF_INTERLACE_MASK; | |
1231 | ||
1da177e4 LT |
1232 | return 0; |
1233 | } | |
1234 | ||
1235 | /* Program a (non-VGA) video mode. */ | |
689c9568 KH |
1236 | int intelfbhw_program_mode(struct intelfb_info *dinfo, |
1237 | const struct intelfb_hwstate *hw, int blank) | |
1da177e4 LT |
1238 | { |
1239 | int pipe = PIPE_A; | |
1240 | u32 tmp; | |
1241 | const u32 *dpll, *fp0, *fp1, *pipe_conf; | |
1242 | const u32 *hs, *ht, *hb, *vs, *vt, *vb, *ss; | |
394d3af7 | 1243 | u32 dpll_reg, fp0_reg, fp1_reg, pipe_conf_reg, pipe_stat_reg; |
1da177e4 LT |
1244 | u32 hsync_reg, htotal_reg, hblank_reg; |
1245 | u32 vsync_reg, vtotal_reg, vblank_reg; | |
1246 | u32 src_size_reg; | |
7679f4d6 | 1247 | u32 count, tmp_val[3]; |
1da177e4 LT |
1248 | |
1249 | /* Assume single pipe, display plane A, analog CRT. */ | |
1250 | ||
1251 | #if VERBOSE > 0 | |
1252 | DBG_MSG("intelfbhw_program_mode\n"); | |
1253 | #endif | |
1254 | ||
1255 | /* Disable VGA */ | |
1256 | tmp = INREG(VGACNTRL); | |
1257 | tmp |= VGA_DISABLE; | |
1258 | OUTREG(VGACNTRL, tmp); | |
1259 | ||
1260 | /* Check whether pipe A or pipe B is enabled. */ | |
1261 | if (hw->pipe_a_conf & PIPECONF_ENABLE) | |
1262 | pipe = PIPE_A; | |
1263 | else if (hw->pipe_b_conf & PIPECONF_ENABLE) | |
1264 | pipe = PIPE_B; | |
1265 | ||
1266 | dinfo->pipe = pipe; | |
1267 | ||
1268 | if (pipe == PIPE_B) { | |
1269 | dpll = &hw->dpll_b; | |
1270 | fp0 = &hw->fpb0; | |
1271 | fp1 = &hw->fpb1; | |
1272 | pipe_conf = &hw->pipe_b_conf; | |
1273 | hs = &hw->hsync_b; | |
1274 | hb = &hw->hblank_b; | |
1275 | ht = &hw->htotal_b; | |
1276 | vs = &hw->vsync_b; | |
1277 | vb = &hw->vblank_b; | |
1278 | vt = &hw->vtotal_b; | |
1279 | ss = &hw->src_size_b; | |
1280 | dpll_reg = DPLL_B; | |
1281 | fp0_reg = FPB0; | |
1282 | fp1_reg = FPB1; | |
1283 | pipe_conf_reg = PIPEBCONF; | |
394d3af7 | 1284 | pipe_stat_reg = PIPEBSTAT; |
1da177e4 LT |
1285 | hsync_reg = HSYNC_B; |
1286 | htotal_reg = HTOTAL_B; | |
1287 | hblank_reg = HBLANK_B; | |
1288 | vsync_reg = VSYNC_B; | |
1289 | vtotal_reg = VTOTAL_B; | |
1290 | vblank_reg = VBLANK_B; | |
1291 | src_size_reg = SRC_SIZE_B; | |
1292 | } else { | |
1293 | dpll = &hw->dpll_a; | |
1294 | fp0 = &hw->fpa0; | |
1295 | fp1 = &hw->fpa1; | |
1296 | pipe_conf = &hw->pipe_a_conf; | |
1297 | hs = &hw->hsync_a; | |
1298 | hb = &hw->hblank_a; | |
1299 | ht = &hw->htotal_a; | |
1300 | vs = &hw->vsync_a; | |
1301 | vb = &hw->vblank_a; | |
1302 | vt = &hw->vtotal_a; | |
1303 | ss = &hw->src_size_a; | |
1304 | dpll_reg = DPLL_A; | |
1305 | fp0_reg = FPA0; | |
1306 | fp1_reg = FPA1; | |
1307 | pipe_conf_reg = PIPEACONF; | |
394d3af7 | 1308 | pipe_stat_reg = PIPEASTAT; |
1da177e4 LT |
1309 | hsync_reg = HSYNC_A; |
1310 | htotal_reg = HTOTAL_A; | |
1311 | hblank_reg = HBLANK_A; | |
1312 | vsync_reg = VSYNC_A; | |
1313 | vtotal_reg = VTOTAL_A; | |
1314 | vblank_reg = VBLANK_A; | |
1315 | src_size_reg = SRC_SIZE_A; | |
1316 | } | |
1317 | ||
7679f4d6 DA |
1318 | /* turn off pipe */ |
1319 | tmp = INREG(pipe_conf_reg); | |
1320 | tmp &= ~PIPECONF_ENABLE; | |
1321 | OUTREG(pipe_conf_reg, tmp); | |
3aff13cf | 1322 | |
7679f4d6 | 1323 | count = 0; |
8b91b0b4 | 1324 | do { |
ee5618f4 KH |
1325 | tmp_val[count % 3] = INREG(PIPEA_DSL); |
1326 | if ((tmp_val[0] == tmp_val[1]) && (tmp_val[1] == tmp_val[2])) | |
3aff13cf DA |
1327 | break; |
1328 | count++; | |
1329 | udelay(1); | |
1330 | if (count % 200 == 0) { | |
1331 | tmp = INREG(pipe_conf_reg); | |
1332 | tmp &= ~PIPECONF_ENABLE; | |
1333 | OUTREG(pipe_conf_reg, tmp); | |
1334 | } | |
689c9568 | 1335 | } while (count < 2000); |
7679f4d6 DA |
1336 | |
1337 | OUTREG(ADPA, INREG(ADPA) & ~ADPA_DAC_ENABLE); | |
1338 | ||
1da177e4 LT |
1339 | /* Disable planes A and B. */ |
1340 | tmp = INREG(DSPACNTR); | |
1341 | tmp &= ~DISPPLANE_PLANE_ENABLE; | |
1342 | OUTREG(DSPACNTR, tmp); | |
1343 | tmp = INREG(DSPBCNTR); | |
1344 | tmp &= ~DISPPLANE_PLANE_ENABLE; | |
1345 | OUTREG(DSPBCNTR, tmp); | |
1346 | ||
3aff13cf | 1347 | /* Wait for vblank. For now, just wait for a 50Hz cycle (20ms)) */ |
1da177e4 LT |
1348 | mdelay(20); |
1349 | ||
f728377f DA |
1350 | OUTREG(DVOB, INREG(DVOB) & ~PORT_ENABLE); |
1351 | OUTREG(DVOC, INREG(DVOC) & ~PORT_ENABLE); | |
1352 | OUTREG(ADPA, INREG(ADPA) & ~ADPA_DAC_ENABLE); | |
1353 | ||
1da177e4 LT |
1354 | /* Disable Sync */ |
1355 | tmp = INREG(ADPA); | |
1356 | tmp &= ~ADPA_DPMS_CONTROL_MASK; | |
1357 | tmp |= ADPA_DPMS_D3; | |
1358 | OUTREG(ADPA, tmp); | |
1359 | ||
7679f4d6 DA |
1360 | /* do some funky magic - xyzzy */ |
1361 | OUTREG(0x61204, 0xabcd0000); | |
1da177e4 LT |
1362 | |
1363 | /* turn off PLL */ | |
1364 | tmp = INREG(dpll_reg); | |
8c8bd037 | 1365 | tmp &= ~DPLL_VCO_ENABLE; |
1da177e4 LT |
1366 | OUTREG(dpll_reg, tmp); |
1367 | ||
1368 | /* Set PLL parameters */ | |
1da177e4 LT |
1369 | OUTREG(fp0_reg, *fp0); |
1370 | OUTREG(fp1_reg, *fp1); | |
1371 | ||
7679f4d6 | 1372 | /* Enable PLL */ |
f728377f | 1373 | OUTREG(dpll_reg, *dpll); |
1da177e4 LT |
1374 | |
1375 | /* Set DVOs B/C */ | |
1376 | OUTREG(DVOB, hw->dvob); | |
1377 | OUTREG(DVOC, hw->dvoc); | |
1378 | ||
7679f4d6 DA |
1379 | /* undo funky magic */ |
1380 | OUTREG(0x61204, 0x00000000); | |
1381 | ||
1da177e4 | 1382 | /* Set ADPA */ |
7679f4d6 | 1383 | OUTREG(ADPA, INREG(ADPA) | ADPA_DAC_ENABLE); |
1da177e4 LT |
1384 | OUTREG(ADPA, (hw->adpa & ~(ADPA_DPMS_CONTROL_MASK)) | ADPA_DPMS_D3); |
1385 | ||
7679f4d6 DA |
1386 | /* Set pipe parameters */ |
1387 | OUTREG(hsync_reg, *hs); | |
1388 | OUTREG(hblank_reg, *hb); | |
1389 | OUTREG(htotal_reg, *ht); | |
1390 | OUTREG(vsync_reg, *vs); | |
1391 | OUTREG(vblank_reg, *vb); | |
1392 | OUTREG(vtotal_reg, *vt); | |
1393 | OUTREG(src_size_reg, *ss); | |
1da177e4 | 1394 | |
394d3af7 KH |
1395 | switch (dinfo->info->var.vmode & (FB_VMODE_INTERLACED | |
1396 | FB_VMODE_ODD_FLD_FIRST)) { | |
1397 | case FB_VMODE_INTERLACED | FB_VMODE_ODD_FLD_FIRST: | |
1398 | OUTREG(pipe_stat_reg, 0xFFFF | PIPESTAT_FLD_EVT_ODD_EN); | |
1399 | break; | |
1400 | case FB_VMODE_INTERLACED: /* even lines first */ | |
1401 | OUTREG(pipe_stat_reg, 0xFFFF | PIPESTAT_FLD_EVT_EVEN_EN); | |
1402 | break; | |
1403 | default: /* non-interlaced */ | |
1404 | OUTREG(pipe_stat_reg, 0xFFFF); /* clear all status bits only */ | |
1405 | } | |
1da177e4 LT |
1406 | /* Enable pipe */ |
1407 | OUTREG(pipe_conf_reg, *pipe_conf | PIPECONF_ENABLE); | |
1408 | ||
1409 | /* Enable sync */ | |
1410 | tmp = INREG(ADPA); | |
1411 | tmp &= ~ADPA_DPMS_CONTROL_MASK; | |
1412 | tmp |= ADPA_DPMS_D0; | |
1413 | OUTREG(ADPA, tmp); | |
1414 | ||
1415 | /* setup display plane */ | |
1416 | if (dinfo->pdev->device == PCI_DEVICE_ID_INTEL_830M) { | |
1417 | /* | |
1418 | * i830M errata: the display plane must be enabled | |
1419 | * to allow writes to the other bits in the plane | |
1420 | * control register. | |
1421 | */ | |
1422 | tmp = INREG(DSPACNTR); | |
1423 | if ((tmp & DISPPLANE_PLANE_ENABLE) != DISPPLANE_PLANE_ENABLE) { | |
1424 | tmp |= DISPPLANE_PLANE_ENABLE; | |
1425 | OUTREG(DSPACNTR, tmp); | |
1426 | OUTREG(DSPACNTR, | |
1427 | hw->disp_a_ctrl|DISPPLANE_PLANE_ENABLE); | |
1428 | mdelay(1); | |
3aff13cf | 1429 | } |
1da177e4 LT |
1430 | } |
1431 | ||
1432 | OUTREG(DSPACNTR, hw->disp_a_ctrl & ~DISPPLANE_PLANE_ENABLE); | |
1433 | OUTREG(DSPASTRIDE, hw->disp_a_stride); | |
1434 | OUTREG(DSPABASE, hw->disp_a_base); | |
1435 | ||
1436 | /* Enable plane */ | |
1437 | if (!blank) { | |
1438 | tmp = INREG(DSPACNTR); | |
1439 | tmp |= DISPPLANE_PLANE_ENABLE; | |
1440 | OUTREG(DSPACNTR, tmp); | |
1441 | OUTREG(DSPABASE, hw->disp_a_base); | |
1442 | } | |
1443 | ||
1444 | return 0; | |
1445 | } | |
1446 | ||
1447 | /* forward declarations */ | |
1448 | static void refresh_ring(struct intelfb_info *dinfo); | |
1449 | static void reset_state(struct intelfb_info *dinfo); | |
1450 | static void do_flush(struct intelfb_info *dinfo); | |
1451 | ||
71c6efd9 OJ |
1452 | static u32 get_ring_space(struct intelfb_info *dinfo) |
1453 | { | |
1454 | u32 ring_space; | |
1455 | ||
1456 | if (dinfo->ring_tail >= dinfo->ring_head) | |
1457 | ring_space = dinfo->ring.size - | |
1458 | (dinfo->ring_tail - dinfo->ring_head); | |
1459 | else | |
1460 | ring_space = dinfo->ring_head - dinfo->ring_tail; | |
1461 | ||
1462 | if (ring_space > RING_MIN_FREE) | |
1463 | ring_space -= RING_MIN_FREE; | |
1464 | else | |
1465 | ring_space = 0; | |
1466 | ||
1467 | return ring_space; | |
1468 | } | |
1469 | ||
689c9568 | 1470 | static int wait_ring(struct intelfb_info *dinfo, int n) |
1da177e4 LT |
1471 | { |
1472 | int i = 0; | |
1473 | unsigned long end; | |
1474 | u32 last_head = INREG(PRI_RING_HEAD) & RING_HEAD_MASK; | |
1475 | ||
1476 | #if VERBOSE > 0 | |
1477 | DBG_MSG("wait_ring: %d\n", n); | |
1478 | #endif | |
1479 | ||
1480 | end = jiffies + (HZ * 3); | |
1481 | while (dinfo->ring_space < n) { | |
0fe6e2d2 | 1482 | dinfo->ring_head = INREG(PRI_RING_HEAD) & RING_HEAD_MASK; |
71c6efd9 OJ |
1483 | dinfo->ring_space = get_ring_space(dinfo); |
1484 | ||
0fe6e2d2 | 1485 | if (dinfo->ring_head != last_head) { |
1da177e4 | 1486 | end = jiffies + (HZ * 3); |
0fe6e2d2 | 1487 | last_head = dinfo->ring_head; |
1da177e4 LT |
1488 | } |
1489 | i++; | |
1490 | if (time_before(end, jiffies)) { | |
1491 | if (!i) { | |
1492 | /* Try again */ | |
1493 | reset_state(dinfo); | |
1494 | refresh_ring(dinfo); | |
1495 | do_flush(dinfo); | |
1496 | end = jiffies + (HZ * 3); | |
1497 | i = 1; | |
1498 | } else { | |
1499 | WRN_MSG("ring buffer : space: %d wanted %d\n", | |
1500 | dinfo->ring_space, n); | |
1501 | WRN_MSG("lockup - turning off hardware " | |
1502 | "acceleration\n"); | |
1503 | dinfo->ring_lockup = 1; | |
1504 | break; | |
1505 | } | |
1506 | } | |
1507 | udelay(1); | |
1508 | } | |
1509 | return i; | |
1510 | } | |
1511 | ||
689c9568 KH |
1512 | static void do_flush(struct intelfb_info *dinfo) |
1513 | { | |
1da177e4 LT |
1514 | START_RING(2); |
1515 | OUT_RING(MI_FLUSH | MI_WRITE_DIRTY_STATE | MI_INVALIDATE_MAP_CACHE); | |
1516 | OUT_RING(MI_NOOP); | |
1517 | ADVANCE_RING(); | |
1518 | } | |
1519 | ||
689c9568 | 1520 | void intelfbhw_do_sync(struct intelfb_info *dinfo) |
1da177e4 LT |
1521 | { |
1522 | #if VERBOSE > 0 | |
1523 | DBG_MSG("intelfbhw_do_sync\n"); | |
1524 | #endif | |
1525 | ||
1526 | if (!dinfo->accel) | |
1527 | return; | |
1528 | ||
1529 | /* | |
1530 | * Send a flush, then wait until the ring is empty. This is what | |
1531 | * the XFree86 driver does, and actually it doesn't seem a lot worse | |
1532 | * than the recommended method (both have problems). | |
1533 | */ | |
1534 | do_flush(dinfo); | |
1535 | wait_ring(dinfo, dinfo->ring.size - RING_MIN_FREE); | |
1536 | dinfo->ring_space = dinfo->ring.size - RING_MIN_FREE; | |
1537 | } | |
1538 | ||
689c9568 | 1539 | static void refresh_ring(struct intelfb_info *dinfo) |
1da177e4 LT |
1540 | { |
1541 | #if VERBOSE > 0 | |
1542 | DBG_MSG("refresh_ring\n"); | |
1543 | #endif | |
1544 | ||
0fe6e2d2 | 1545 | dinfo->ring_head = INREG(PRI_RING_HEAD) & RING_HEAD_MASK; |
1da177e4 | 1546 | dinfo->ring_tail = INREG(PRI_RING_TAIL) & RING_TAIL_MASK; |
71c6efd9 | 1547 | dinfo->ring_space = get_ring_space(dinfo); |
1da177e4 LT |
1548 | } |
1549 | ||
689c9568 | 1550 | static void reset_state(struct intelfb_info *dinfo) |
1da177e4 LT |
1551 | { |
1552 | int i; | |
1553 | u32 tmp; | |
1554 | ||
1555 | #if VERBOSE > 0 | |
1556 | DBG_MSG("reset_state\n"); | |
1557 | #endif | |
1558 | ||
1559 | for (i = 0; i < FENCE_NUM; i++) | |
1560 | OUTREG(FENCE + (i << 2), 0); | |
1561 | ||
1562 | /* Flush the ring buffer if it's enabled. */ | |
1563 | tmp = INREG(PRI_RING_LENGTH); | |
1564 | if (tmp & RING_ENABLE) { | |
1565 | #if VERBOSE > 0 | |
1566 | DBG_MSG("reset_state: ring was enabled\n"); | |
1567 | #endif | |
1568 | refresh_ring(dinfo); | |
1569 | intelfbhw_do_sync(dinfo); | |
1570 | DO_RING_IDLE(); | |
1571 | } | |
1572 | ||
1573 | OUTREG(PRI_RING_LENGTH, 0); | |
1574 | OUTREG(PRI_RING_HEAD, 0); | |
1575 | OUTREG(PRI_RING_TAIL, 0); | |
1576 | OUTREG(PRI_RING_START, 0); | |
1577 | } | |
1578 | ||
1579 | /* Stop the 2D engine, and turn off the ring buffer. */ | |
689c9568 | 1580 | void intelfbhw_2d_stop(struct intelfb_info *dinfo) |
1da177e4 LT |
1581 | { |
1582 | #if VERBOSE > 0 | |
689c9568 KH |
1583 | DBG_MSG("intelfbhw_2d_stop: accel: %d, ring_active: %d\n", |
1584 | dinfo->accel, dinfo->ring_active); | |
1da177e4 LT |
1585 | #endif |
1586 | ||
1587 | if (!dinfo->accel) | |
1588 | return; | |
1589 | ||
1590 | dinfo->ring_active = 0; | |
1591 | reset_state(dinfo); | |
1592 | } | |
1593 | ||
1594 | /* | |
1595 | * Enable the ring buffer, and initialise the 2D engine. | |
1596 | * It is assumed that the graphics engine has been stopped by previously | |
1597 | * calling intelfb_2d_stop(). | |
1598 | */ | |
689c9568 | 1599 | void intelfbhw_2d_start(struct intelfb_info *dinfo) |
1da177e4 LT |
1600 | { |
1601 | #if VERBOSE > 0 | |
1602 | DBG_MSG("intelfbhw_2d_start: accel: %d, ring_active: %d\n", | |
1603 | dinfo->accel, dinfo->ring_active); | |
1604 | #endif | |
1605 | ||
1606 | if (!dinfo->accel) | |
1607 | return; | |
1608 | ||
1609 | /* Initialise the primary ring buffer. */ | |
1610 | OUTREG(PRI_RING_LENGTH, 0); | |
1611 | OUTREG(PRI_RING_TAIL, 0); | |
1612 | OUTREG(PRI_RING_HEAD, 0); | |
1613 | ||
1614 | OUTREG(PRI_RING_START, dinfo->ring.physical & RING_START_MASK); | |
1615 | OUTREG(PRI_RING_LENGTH, | |
1616 | ((dinfo->ring.size - GTT_PAGE_SIZE) & RING_LENGTH_MASK) | | |
1617 | RING_NO_REPORT | RING_ENABLE); | |
1618 | refresh_ring(dinfo); | |
1619 | dinfo->ring_active = 1; | |
1620 | } | |
1621 | ||
1622 | /* 2D fillrect (solid fill or invert) */ | |
689c9568 KH |
1623 | void intelfbhw_do_fillrect(struct intelfb_info *dinfo, u32 x, u32 y, u32 w, |
1624 | u32 h, u32 color, u32 pitch, u32 bpp, u32 rop) | |
1da177e4 LT |
1625 | { |
1626 | u32 br00, br09, br13, br14, br16; | |
1627 | ||
1628 | #if VERBOSE > 0 | |
1629 | DBG_MSG("intelfbhw_do_fillrect: (%d,%d) %dx%d, c 0x%06x, p %d bpp %d, " | |
1630 | "rop 0x%02x\n", x, y, w, h, color, pitch, bpp, rop); | |
1631 | #endif | |
1632 | ||
1633 | br00 = COLOR_BLT_CMD; | |
1634 | br09 = dinfo->fb_start + (y * pitch + x * (bpp / 8)); | |
1635 | br13 = (rop << ROP_SHIFT) | pitch; | |
1636 | br14 = (h << HEIGHT_SHIFT) | ((w * (bpp / 8)) << WIDTH_SHIFT); | |
1637 | br16 = color; | |
1638 | ||
1639 | switch (bpp) { | |
1640 | case 8: | |
1641 | br13 |= COLOR_DEPTH_8; | |
1642 | break; | |
1643 | case 16: | |
1644 | br13 |= COLOR_DEPTH_16; | |
1645 | break; | |
1646 | case 32: | |
1647 | br13 |= COLOR_DEPTH_32; | |
1648 | br00 |= WRITE_ALPHA | WRITE_RGB; | |
1649 | break; | |
1650 | } | |
1651 | ||
1652 | START_RING(6); | |
1653 | OUT_RING(br00); | |
1654 | OUT_RING(br13); | |
1655 | OUT_RING(br14); | |
1656 | OUT_RING(br09); | |
1657 | OUT_RING(br16); | |
1658 | OUT_RING(MI_NOOP); | |
1659 | ADVANCE_RING(); | |
1660 | ||
1661 | #if VERBOSE > 0 | |
1662 | DBG_MSG("ring = 0x%08x, 0x%08x (%d)\n", dinfo->ring_head, | |
1663 | dinfo->ring_tail, dinfo->ring_space); | |
1664 | #endif | |
1665 | } | |
1666 | ||
1667 | void | |
1668 | intelfbhw_do_bitblt(struct intelfb_info *dinfo, u32 curx, u32 cury, | |
1669 | u32 dstx, u32 dsty, u32 w, u32 h, u32 pitch, u32 bpp) | |
1670 | { | |
1671 | u32 br00, br09, br11, br12, br13, br22, br23, br26; | |
1672 | ||
1673 | #if VERBOSE > 0 | |
1674 | DBG_MSG("intelfbhw_do_bitblt: (%d,%d)->(%d,%d) %dx%d, p %d bpp %d\n", | |
1675 | curx, cury, dstx, dsty, w, h, pitch, bpp); | |
1676 | #endif | |
1677 | ||
1678 | br00 = XY_SRC_COPY_BLT_CMD; | |
1679 | br09 = dinfo->fb_start; | |
1680 | br11 = (pitch << PITCH_SHIFT); | |
1681 | br12 = dinfo->fb_start; | |
1682 | br13 = (SRC_ROP_GXCOPY << ROP_SHIFT) | (pitch << PITCH_SHIFT); | |
1683 | br22 = (dstx << WIDTH_SHIFT) | (dsty << HEIGHT_SHIFT); | |
1684 | br23 = ((dstx + w) << WIDTH_SHIFT) | | |
1685 | ((dsty + h) << HEIGHT_SHIFT); | |
1686 | br26 = (curx << WIDTH_SHIFT) | (cury << HEIGHT_SHIFT); | |
1687 | ||
1688 | switch (bpp) { | |
1689 | case 8: | |
1690 | br13 |= COLOR_DEPTH_8; | |
1691 | break; | |
1692 | case 16: | |
1693 | br13 |= COLOR_DEPTH_16; | |
1694 | break; | |
1695 | case 32: | |
1696 | br13 |= COLOR_DEPTH_32; | |
1697 | br00 |= WRITE_ALPHA | WRITE_RGB; | |
1698 | break; | |
1699 | } | |
1700 | ||
1701 | START_RING(8); | |
1702 | OUT_RING(br00); | |
1703 | OUT_RING(br13); | |
1704 | OUT_RING(br22); | |
1705 | OUT_RING(br23); | |
1706 | OUT_RING(br09); | |
1707 | OUT_RING(br26); | |
1708 | OUT_RING(br11); | |
1709 | OUT_RING(br12); | |
1710 | ADVANCE_RING(); | |
1711 | } | |
1712 | ||
689c9568 KH |
1713 | int intelfbhw_do_drawglyph(struct intelfb_info *dinfo, u32 fg, u32 bg, u32 w, |
1714 | u32 h, const u8* cdat, u32 x, u32 y, u32 pitch, | |
1715 | u32 bpp) | |
1da177e4 LT |
1716 | { |
1717 | int nbytes, ndwords, pad, tmp; | |
1718 | u32 br00, br09, br13, br18, br19, br22, br23; | |
1719 | int dat, ix, iy, iw; | |
1720 | int i, j; | |
1721 | ||
1722 | #if VERBOSE > 0 | |
1723 | DBG_MSG("intelfbhw_do_drawglyph: (%d,%d) %dx%d\n", x, y, w, h); | |
1724 | #endif | |
1725 | ||
1726 | /* size in bytes of a padded scanline */ | |
1727 | nbytes = ROUND_UP_TO(w, 16) / 8; | |
1728 | ||
1729 | /* Total bytes of padded scanline data to write out. */ | |
1730 | nbytes = nbytes * h; | |
1731 | ||
1732 | /* | |
1733 | * Check if the glyph data exceeds the immediate mode limit. | |
1734 | * It would take a large font (1K pixels) to hit this limit. | |
1735 | */ | |
1736 | if (nbytes > MAX_MONO_IMM_SIZE) | |
1737 | return 0; | |
1738 | ||
1739 | /* Src data is packaged a dword (32-bit) at a time. */ | |
1740 | ndwords = ROUND_UP_TO(nbytes, 4) / 4; | |
1741 | ||
1742 | /* | |
1743 | * Ring has to be padded to a quad word. But because the command starts | |
1744 | with 7 bytes, pad only if there is an even number of ndwords | |
1745 | */ | |
1746 | pad = !(ndwords % 2); | |
1747 | ||
1748 | tmp = (XY_MONO_SRC_IMM_BLT_CMD & DW_LENGTH_MASK) + ndwords; | |
1749 | br00 = (XY_MONO_SRC_IMM_BLT_CMD & ~DW_LENGTH_MASK) | tmp; | |
1750 | br09 = dinfo->fb_start; | |
1751 | br13 = (SRC_ROP_GXCOPY << ROP_SHIFT) | (pitch << PITCH_SHIFT); | |
1752 | br18 = bg; | |
1753 | br19 = fg; | |
1754 | br22 = (x << WIDTH_SHIFT) | (y << HEIGHT_SHIFT); | |
1755 | br23 = ((x + w) << WIDTH_SHIFT) | ((y + h) << HEIGHT_SHIFT); | |
1756 | ||
1757 | switch (bpp) { | |
1758 | case 8: | |
1759 | br13 |= COLOR_DEPTH_8; | |
1760 | break; | |
1761 | case 16: | |
1762 | br13 |= COLOR_DEPTH_16; | |
1763 | break; | |
1764 | case 32: | |
1765 | br13 |= COLOR_DEPTH_32; | |
1766 | br00 |= WRITE_ALPHA | WRITE_RGB; | |
1767 | break; | |
1768 | } | |
1769 | ||
1770 | START_RING(8 + ndwords); | |
1771 | OUT_RING(br00); | |
1772 | OUT_RING(br13); | |
1773 | OUT_RING(br22); | |
1774 | OUT_RING(br23); | |
1775 | OUT_RING(br09); | |
1776 | OUT_RING(br18); | |
1777 | OUT_RING(br19); | |
1778 | ix = iy = 0; | |
1779 | iw = ROUND_UP_TO(w, 8) / 8; | |
1780 | while (ndwords--) { | |
1781 | dat = 0; | |
1782 | for (j = 0; j < 2; ++j) { | |
1783 | for (i = 0; i < 2; ++i) { | |
1784 | if (ix != iw || i == 0) | |
1785 | dat |= cdat[iy*iw + ix++] << (i+j*2)*8; | |
1786 | } | |
1787 | if (ix == iw && iy != (h-1)) { | |
1788 | ix = 0; | |
1789 | ++iy; | |
1790 | } | |
1791 | } | |
1792 | OUT_RING(dat); | |
1793 | } | |
1794 | if (pad) | |
1795 | OUT_RING(MI_NOOP); | |
1796 | ADVANCE_RING(); | |
1797 | ||
1798 | return 1; | |
1799 | } | |
1800 | ||
1801 | /* HW cursor functions. */ | |
689c9568 | 1802 | void intelfbhw_cursor_init(struct intelfb_info *dinfo) |
1da177e4 LT |
1803 | { |
1804 | u32 tmp; | |
1805 | ||
1806 | #if VERBOSE > 0 | |
1807 | DBG_MSG("intelfbhw_cursor_init\n"); | |
1808 | #endif | |
1809 | ||
3aff13cf | 1810 | if (dinfo->mobile || IS_I9XX(dinfo)) { |
1da177e4 LT |
1811 | if (!dinfo->cursor.physical) |
1812 | return; | |
1813 | tmp = INREG(CURSOR_A_CONTROL); | |
1814 | tmp &= ~(CURSOR_MODE_MASK | CURSOR_MOBILE_GAMMA_ENABLE | | |
1815 | CURSOR_MEM_TYPE_LOCAL | | |
1816 | (1 << CURSOR_PIPE_SELECT_SHIFT)); | |
1817 | tmp |= CURSOR_MODE_DISABLE; | |
1818 | OUTREG(CURSOR_A_CONTROL, tmp); | |
1819 | OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.physical); | |
1820 | } else { | |
1821 | tmp = INREG(CURSOR_CONTROL); | |
1822 | tmp &= ~(CURSOR_FORMAT_MASK | CURSOR_GAMMA_ENABLE | | |
1823 | CURSOR_ENABLE | CURSOR_STRIDE_MASK); | |
1824 | tmp = CURSOR_FORMAT_3C; | |
1825 | OUTREG(CURSOR_CONTROL, tmp); | |
1826 | OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.offset << 12); | |
1827 | tmp = (64 << CURSOR_SIZE_H_SHIFT) | | |
1828 | (64 << CURSOR_SIZE_V_SHIFT); | |
1829 | OUTREG(CURSOR_SIZE, tmp); | |
1830 | } | |
1831 | } | |
1832 | ||
689c9568 | 1833 | void intelfbhw_cursor_hide(struct intelfb_info *dinfo) |
1da177e4 LT |
1834 | { |
1835 | u32 tmp; | |
1836 | ||
1837 | #if VERBOSE > 0 | |
1838 | DBG_MSG("intelfbhw_cursor_hide\n"); | |
1839 | #endif | |
1840 | ||
1841 | dinfo->cursor_on = 0; | |
3aff13cf | 1842 | if (dinfo->mobile || IS_I9XX(dinfo)) { |
1da177e4 LT |
1843 | if (!dinfo->cursor.physical) |
1844 | return; | |
1845 | tmp = INREG(CURSOR_A_CONTROL); | |
1846 | tmp &= ~CURSOR_MODE_MASK; | |
1847 | tmp |= CURSOR_MODE_DISABLE; | |
1848 | OUTREG(CURSOR_A_CONTROL, tmp); | |
1849 | /* Flush changes */ | |
1850 | OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.physical); | |
1851 | } else { | |
1852 | tmp = INREG(CURSOR_CONTROL); | |
1853 | tmp &= ~CURSOR_ENABLE; | |
1854 | OUTREG(CURSOR_CONTROL, tmp); | |
1855 | } | |
1856 | } | |
1857 | ||
689c9568 | 1858 | void intelfbhw_cursor_show(struct intelfb_info *dinfo) |
1da177e4 LT |
1859 | { |
1860 | u32 tmp; | |
1861 | ||
1862 | #if VERBOSE > 0 | |
1863 | DBG_MSG("intelfbhw_cursor_show\n"); | |
1864 | #endif | |
1865 | ||
1866 | dinfo->cursor_on = 1; | |
1867 | ||
1868 | if (dinfo->cursor_blanked) | |
1869 | return; | |
1870 | ||
3aff13cf | 1871 | if (dinfo->mobile || IS_I9XX(dinfo)) { |
1da177e4 LT |
1872 | if (!dinfo->cursor.physical) |
1873 | return; | |
1874 | tmp = INREG(CURSOR_A_CONTROL); | |
1875 | tmp &= ~CURSOR_MODE_MASK; | |
1876 | tmp |= CURSOR_MODE_64_4C_AX; | |
1877 | OUTREG(CURSOR_A_CONTROL, tmp); | |
1878 | /* Flush changes */ | |
1879 | OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.physical); | |
1880 | } else { | |
1881 | tmp = INREG(CURSOR_CONTROL); | |
1882 | tmp |= CURSOR_ENABLE; | |
1883 | OUTREG(CURSOR_CONTROL, tmp); | |
1884 | } | |
1885 | } | |
1886 | ||
689c9568 | 1887 | void intelfbhw_cursor_setpos(struct intelfb_info *dinfo, int x, int y) |
1da177e4 LT |
1888 | { |
1889 | u32 tmp; | |
1890 | ||
1891 | #if VERBOSE > 0 | |
1892 | DBG_MSG("intelfbhw_cursor_setpos: (%d, %d)\n", x, y); | |
1893 | #endif | |
1894 | ||
1895 | /* | |
3aff13cf DA |
1896 | * Sets the position. The coordinates are assumed to already |
1897 | * have any offset adjusted. Assume that the cursor is never | |
1da177e4 LT |
1898 | * completely off-screen, and that x, y are always >= 0. |
1899 | */ | |
1900 | ||
1901 | tmp = ((x & CURSOR_POS_MASK) << CURSOR_X_SHIFT) | | |
1902 | ((y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT); | |
1903 | OUTREG(CURSOR_A_POSITION, tmp); | |
8bb91f6a | 1904 | |
689c9568 | 1905 | if (IS_I9XX(dinfo)) |
8bb91f6a | 1906 | OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.physical); |
1da177e4 LT |
1907 | } |
1908 | ||
689c9568 | 1909 | void intelfbhw_cursor_setcolor(struct intelfb_info *dinfo, u32 bg, u32 fg) |
1da177e4 LT |
1910 | { |
1911 | #if VERBOSE > 0 | |
1912 | DBG_MSG("intelfbhw_cursor_setcolor\n"); | |
1913 | #endif | |
1914 | ||
1915 | OUTREG(CURSOR_A_PALETTE0, bg & CURSOR_PALETTE_MASK); | |
1916 | OUTREG(CURSOR_A_PALETTE1, fg & CURSOR_PALETTE_MASK); | |
1917 | OUTREG(CURSOR_A_PALETTE2, fg & CURSOR_PALETTE_MASK); | |
1918 | OUTREG(CURSOR_A_PALETTE3, bg & CURSOR_PALETTE_MASK); | |
1919 | } | |
1920 | ||
689c9568 KH |
1921 | void intelfbhw_cursor_load(struct intelfb_info *dinfo, int width, int height, |
1922 | u8 *data) | |
1da177e4 LT |
1923 | { |
1924 | u8 __iomem *addr = (u8 __iomem *)dinfo->cursor.virtual; | |
1925 | int i, j, w = width / 8; | |
1926 | int mod = width % 8, t_mask, d_mask; | |
1927 | ||
1928 | #if VERBOSE > 0 | |
1929 | DBG_MSG("intelfbhw_cursor_load\n"); | |
1930 | #endif | |
1931 | ||
1932 | if (!dinfo->cursor.virtual) | |
1933 | return; | |
1934 | ||
1935 | t_mask = 0xff >> mod; | |
1936 | d_mask = ~(0xff >> mod); | |
1937 | for (i = height; i--; ) { | |
1938 | for (j = 0; j < w; j++) { | |
1939 | writeb(0x00, addr + j); | |
1940 | writeb(*(data++), addr + j+8); | |
1941 | } | |
1942 | if (mod) { | |
1943 | writeb(t_mask, addr + j); | |
1944 | writeb(*(data++) & d_mask, addr + j+8); | |
1945 | } | |
1946 | addr += 16; | |
1947 | } | |
1948 | } | |
1949 | ||
689c9568 KH |
1950 | void intelfbhw_cursor_reset(struct intelfb_info *dinfo) |
1951 | { | |
1da177e4 LT |
1952 | u8 __iomem *addr = (u8 __iomem *)dinfo->cursor.virtual; |
1953 | int i, j; | |
1954 | ||
1955 | #if VERBOSE > 0 | |
1956 | DBG_MSG("intelfbhw_cursor_reset\n"); | |
1957 | #endif | |
1958 | ||
1959 | if (!dinfo->cursor.virtual) | |
1960 | return; | |
1961 | ||
1962 | for (i = 64; i--; ) { | |
1963 | for (j = 0; j < 8; j++) { | |
1964 | writeb(0xff, addr + j+0); | |
1965 | writeb(0x00, addr + j+8); | |
1966 | } | |
1967 | addr += 16; | |
1968 | } | |
1969 | } | |
7649757b | 1970 | |
394d3af7 KH |
1971 | static irqreturn_t intelfbhw_irq(int irq, void *dev_id) |
1972 | { | |
7649757b EH |
1973 | u16 tmp; |
1974 | struct intelfb_info *dinfo = (struct intelfb_info *)dev_id; | |
1975 | ||
1976 | spin_lock(&dinfo->int_lock); | |
1977 | ||
1978 | tmp = INREG16(IIR); | |
394d3af7 KH |
1979 | if (dinfo->info->var.vmode & FB_VMODE_INTERLACED) |
1980 | tmp &= PIPE_A_EVENT_INTERRUPT; | |
1981 | else | |
1982 | tmp &= VSYNC_PIPE_A_INTERRUPT; /* non-interlaced */ | |
7649757b EH |
1983 | |
1984 | if (tmp == 0) { | |
1985 | spin_unlock(&dinfo->int_lock); | |
394d3af7 | 1986 | return IRQ_RETVAL(0); /* not us */ |
7649757b EH |
1987 | } |
1988 | ||
394d3af7 KH |
1989 | /* clear status bits 0-15 ASAP and don't touch bits 16-31 */ |
1990 | OUTREG(PIPEASTAT, INREG(PIPEASTAT)); | |
7649757b | 1991 | |
394d3af7 KH |
1992 | OUTREG16(IIR, tmp); |
1993 | if (dinfo->vsync.pan_display) { | |
1994 | dinfo->vsync.pan_display = 0; | |
1995 | OUTREG(DSPABASE, dinfo->vsync.pan_offset); | |
7649757b EH |
1996 | } |
1997 | ||
394d3af7 KH |
1998 | dinfo->vsync.count++; |
1999 | wake_up_interruptible(&dinfo->vsync.wait); | |
2000 | ||
7649757b EH |
2001 | spin_unlock(&dinfo->int_lock); |
2002 | ||
394d3af7 | 2003 | return IRQ_RETVAL(1); |
7649757b EH |
2004 | } |
2005 | ||
394d3af7 KH |
2006 | int intelfbhw_enable_irq(struct intelfb_info *dinfo) |
2007 | { | |
2008 | u16 tmp; | |
7649757b | 2009 | if (!test_and_set_bit(0, &dinfo->irq_flags)) { |
38515e90 | 2010 | if (request_irq(dinfo->pdev->irq, intelfbhw_irq, IRQF_SHARED, |
394d3af7 | 2011 | "intelfb", dinfo)) { |
7649757b EH |
2012 | clear_bit(0, &dinfo->irq_flags); |
2013 | return -EINVAL; | |
2014 | } | |
2015 | ||
2016 | spin_lock_irq(&dinfo->int_lock); | |
394d3af7 KH |
2017 | OUTREG16(HWSTAM, 0xfffe); /* i830 DRM uses ffff */ |
2018 | OUTREG16(IMR, 0); | |
2019 | } else | |
7649757b | 2020 | spin_lock_irq(&dinfo->int_lock); |
394d3af7 KH |
2021 | |
2022 | if (dinfo->info->var.vmode & FB_VMODE_INTERLACED) | |
2023 | tmp = PIPE_A_EVENT_INTERRUPT; | |
2024 | else | |
2025 | tmp = VSYNC_PIPE_A_INTERRUPT; /* non-interlaced */ | |
2026 | if (tmp != INREG16(IER)) { | |
2027 | DBG_MSG("changing IER to 0x%X\n", tmp); | |
2028 | OUTREG16(IER, tmp); | |
7649757b | 2029 | } |
394d3af7 KH |
2030 | |
2031 | spin_unlock_irq(&dinfo->int_lock); | |
7649757b EH |
2032 | return 0; |
2033 | } | |
2034 | ||
394d3af7 KH |
2035 | void intelfbhw_disable_irq(struct intelfb_info *dinfo) |
2036 | { | |
7649757b | 2037 | if (test_and_clear_bit(0, &dinfo->irq_flags)) { |
f80d0d23 EH |
2038 | if (dinfo->vsync.pan_display) { |
2039 | dinfo->vsync.pan_display = 0; | |
2040 | OUTREG(DSPABASE, dinfo->vsync.pan_offset); | |
2041 | } | |
7649757b EH |
2042 | spin_lock_irq(&dinfo->int_lock); |
2043 | OUTREG16(HWSTAM, 0xffff); | |
2044 | OUTREG16(IMR, 0xffff); | |
2045 | OUTREG16(IER, 0x0); | |
2046 | ||
ee5618f4 | 2047 | OUTREG16(IIR, INREG16(IIR)); /* clear IRQ requests */ |
7649757b EH |
2048 | spin_unlock_irq(&dinfo->int_lock); |
2049 | ||
2050 | free_irq(dinfo->pdev->irq, dinfo); | |
2051 | } | |
2052 | } | |
37bced38 | 2053 | |
689c9568 KH |
2054 | int intelfbhw_wait_for_vsync(struct intelfb_info *dinfo, u32 pipe) |
2055 | { | |
37bced38 EH |
2056 | struct intelfb_vsync *vsync; |
2057 | unsigned int count; | |
2058 | int ret; | |
2059 | ||
2060 | switch (pipe) { | |
2061 | case 0: | |
2062 | vsync = &dinfo->vsync; | |
2063 | break; | |
2064 | default: | |
2065 | return -ENODEV; | |
2066 | } | |
2067 | ||
394d3af7 | 2068 | ret = intelfbhw_enable_irq(dinfo); |
689c9568 | 2069 | if (ret) |
37bced38 | 2070 | return ret; |
37bced38 EH |
2071 | |
2072 | count = vsync->count; | |
689c9568 KH |
2073 | ret = wait_event_interruptible_timeout(vsync->wait, |
2074 | count != vsync->count, HZ / 10); | |
2075 | if (ret < 0) | |
37bced38 | 2076 | return ret; |
37bced38 | 2077 | if (ret == 0) { |
37bced38 EH |
2078 | DBG_MSG("wait_for_vsync timed out!\n"); |
2079 | return -ETIMEDOUT; | |
2080 | } | |
2081 | ||
2082 | return 0; | |
2083 | } |